Unable to determine the relationship represented by navigation one to one Step1' of type 'Step1'. SenderUserId' of type 'User'. JoinedClasses' of type 'ICollection'. I have tried to blindly configure it in OnModelCreating with no luck, any idea how to solve this? Sep 8, 2021 · I have two tables - Products and ProductRelations. Property IEnumerable<AnotherClass> Hi, With EF Core 1. in addition to having the "dotnet ef 8. NorthLocation' of type 'Location'. Question' of type 'Question'. 1 website (using identity) I get the following error: "InvalidOperationException: Unable to determine the relationship represented by navigation property 'City. 1 to 6. StageId > RoomBase. TeamMembers' of type 'ICollection<TeamMember>'. Users' of type 'ICollection'. TotalSalesPrice' of type 'Price'. OriginatingSalesOrder' of type 'SalesOrder'. Ignore’ in ‘OnModelCreating’. May 11, 2022 · The above setup is giving the following exception while adding the migration: Unable to determine the relationship represented by navigation property 'User. Apr 11, 2019 · "InvalidOperationException: Unable to determine the relationship represented by navigation property 'City. Either manually configure the relationship, or ignore this property using the '[NotMapped]' attribute or by using 'EntityTypeBuilder. Faculties' of type 'ICollection<Faculty>'. CreatorUser' of type 'User'. Net Core 3. Either manually configure the relationship, or ignore this property using the ' [NotMapped]' attribute or by using 'EntityTypeBuilder. DocumentsToAcceptAfterFilling' of type 'IEnumerable'. Apr 2, 2021 · 'Unable to determine the relationship represented by navigation property 'Process. Means for example if EmployeeDepartment is the table that you are going to update and the Primary key is EmployeeDepartmentID and if it is identity column and auto-generated, Check in the EDMX whether the EmployeeDepartmentID is referenced back to itself. ActiveMovies' of type 'ICollection' Aug 16, 2017 · Unable to determine the relationship represented by navigation property occurring issue after migration of asp. Aug 4, 2022 · EF Core - Unable to determine the relationship represented by navigation (One-to-Many) Hot Network Questions Short story I read a while back, from aliens' point of view on humanity Mar 7, 2021 · Navigation properties can only participate in a single relationship. The principal end of this association must be explicitly configured using either the relationship fluent API or data annotations. public class Ingredient { public string IngredientName { get; set; } public string Value { get; set; } // This might be an int, you can change this on your purpose. DeleterUser' of type 'User'. TrainingMark' of type 'StudentTrainingMark'. FirstTeam and the same for the SecondTeam (in this case can be Jul 25, 2017 · Unable to determine the relationship represented by navigation property Entity Framework Core 0 System. State = EntityState. ConnectionStartCity' of type 'ICollection'. I am getting the following exception message: Unable to determine the relationship represented by navigation property 'Actor. I can kinda see why it's complaining about this, but I'm not sure if there's a way with the model builder I can configure this, or whether it's an Jan 18, 2021 · The many-to-many now seems to be resolved but dotnet ef migrations add NotificationRecipients results in Unable to determine the relationship represented by navigation 'Notification. So next, I decided to try and explicitly declare the relationships with: In this video, I am going to fix type of error:Fix: Unable to determine the relationship represented by navigation navigation property of type ICollection. 1 below code worked fine, but after upgrading to EF Core 2. Fighter1' of type 'Fighter'. Oct 23, 2021 · How to apply Inverse Property in Ef Core I gone through so many examples but didnt helps me. Wholesalers' of type 'ICollection<Wholesaler>'. AuthoredPosts); The many-to-many relationship requires more configuration. Status' of type 'Status'. Mar 7, 2020 · Either manually configure the relationship, or ignore this property using the '[NotMapped]' attribute or by using 'EntityTypeBuilder. Sender' of type 'User'. Jul 18, 2017 · Unhandled Exception: System. So my models like this public class Customer { public string Name { get; set; } public int AddedByID { get; set; } public int EditedByID { get;… Sep 6, 2017 · Unable to determine the relationship represented by navigation property 'Company. Modified; // the line before did attach the object to the context // with project. InvalidOperationException: Unable to determine the relationship represented by navigation 'Event. UserRoles' of type 'ICollection<UserRole>'. Planner' of type 'User'. EvaluacionesModel’ of type ‘List<EvaluacionModel>’. InvalidOperationException: Unable to determine the relationship represented by navigation property 'Investor. InvalidOperationException: Unable to determine the relationship represented by navigation 'ApplicationUser. TypeDao' of type 'TypeDao'. I am trying to configure a one-to-many relationship between DialogueEntry and Many-to-many: Unable to determine the relationship represented by navigation property 3 EF Core - Unable to determine the relationship represented by navigation (One-to-Many) May 27, 2016 · Setting the state to Modified only marks scalar properties as modified, not navigation properties. Company' of type 'CompanyEntity'. Ignore' in 'OnModelCreating Jan 25, 2020 · Unable to determine the relationship represented by navigation property 'Message. `* Oct 15, 2017 · System. 0, this was all the extra libraries I installed to get the EF working. SenderUserId InvalidOperationException: Unable to determine the relationship represented by navigation property 'ApplicationUser. Ignore' in This could be because of a cyclic reference in you EDMX back to the same table. ' Jul 15, 2023 · Unable to determine the relationship represented by navigation 'AcademyStatistics. Sep 12, 2019 · Unable to determine the relationship represented by navigation property 'City. Unable to determine the relationship represented by navigation 'Department. May 31, 2024 · When there is only one startup project, Entity Framework Core can automatically detect and use it without any issues. Identity; namespace EventEnroll. InvalidOperationException: Unable to determine the relationship represented by navigation property of Class. MemberTeam' of type 'Team'. IssuedOrders' of type 'ICollection<OrderModel>'". Site' of type 'Level'. DepartingFlights’ of type ‘ICollection’. 0 Entity Framework Unable to determine the relationship represented by Oct 27, 2022 · When I try to create a migrations, EF throws exceptions "Unable to determine the relationship represented by navigation 'OrderModel. " May 14, 2021 · System. Ignore' in 'OnModelCreating' May 12, 2022 · Unable to determine the relationship represented by navigation'Customer. Apr 28, 2022 · The relationships here are a little bit backwards in terms of where the FK in the relationship will be located. Either manually configure the relationship, or ignore this property from the model. LinkedArticles' of type 'ICollection'. InvalidOperationException: 'Unable to determine the relationship represented by navigation property 'EventSignup. 0, I encountered an issue with Entity Framework Core. Could somebody tell me what the Feb 12, 2018 · Continuing without the application service provider. Id add this Game reference to the property Game. Ignore' in 'OnModelCreating' I use NetCore 2. User Tablo Aug 31, 2023 · Unable to determine the relationship represented by navigation 'PriceList. 1 app I want to define a Facility and a Person model where each facility can have one representative and many delegates of the type Person but I'm getting the "Unable to Jun 10, 2021 · Unable to determine the relationship represented by navigation property ASP. ApplicationUser'. Manager = manager; // this When I try to register a user on my . ProductLine' of type 'ProductLine'. That means your foreign key column should be nullable so that you can insert your first record with NULL value in your foreign key column. Nov 28, 2021 · EF is struggling because you've connected Movie to Person twice, once Movie-has-many-Actor-Persons and once via Movie-has-one-Person-Director. CashCollateral' of type 'CashCollateral'. However, when you have multiple startup projects, EF Core can't automatically determine which one to use for the migration, so you need to explicitly specify both the project containing the DbContext and the startup project InvalidOperationException: Unable to determine the relationship represented by navigation property 'ApplicationUser. The exception 'Unable to determine the relationship represented by navigation 'User. Either manually configure the relationship, or ignore this property using the ‘[NotMapped]’ attribute or by using ‘EntityTypeBuilder. So I tried to add some OnModelCreating code in the database context: Dec 5, 2017 · System. Jun 24, 2020 · EF Core - Unable to determine the relationship represented by navigation (One-to-Many) 3 EF Core 6 Unable to determine the relationship represented by navigation Mar 23, 2022 · EF Core - Unable to determine the relationship represented by navigation (One-to-Many) Load 7 more related questions Show fewer related questions 0 Jan 29, 2019 · Unable to determine the relationship represented by navigation property 'Fixture. I have checked in SQL Server and verified that I do have one Company and one associated Server. Nov 26, 2015 · Since 1-1 is not really practical here, You should be doing a one to zero/one relationship. . They are like this: public class Product { public int Id { get; set; } public string SKU { get; set; } public string Name { get; set; Oct 22, 2020 · Unable to determine the relationship represented by navigation property 'Step. net core 1. cs ```csharp using Microsoft. InvalidOperationException: 'Unable Dec 12, 2022 · Hello DevExpress Team, I have a very urgent problem with my XAF EF Core project: I am unable to a single CRUD operation in my project after Unable to determine the relationship represented by navigation 'AuditDataItemPersistent. Children#VersionItemsEntity. UserAccounts' of type 'ICollection'. The relationship it is talking about is defined in ApplicationDbContext as follows: Mar 21, 2020 · I am, essentially, trying to define just one side of a one to many relationship using PostgreSQL entity framework and am producing the following error: System. Dec 12, 2022 · This error occurs because your auditing DbContext does not configure relationships between AuditEFCoreWeakReference and AuditDataItemPersistent as described at Core - XAF's Blazor, Web API Service, and WinForms assemblies target EF Core 6 instead of EF Core 5: Jan 13, 2022 · I am trying to create a simple One-to-many relationship but Ef Core somehow does not recognize it. 7 Aug 7, 2020 Oct 9, 2019 · System. ' PM> Add-Migration user-reserve-relationship Unable to determine the relationship represented by navigation property 'ApplicationUser. Dec 1, 2023 · The one-to-many relationship is pretty straightforward. The only solution I could think of, is to create two new inherited classes fom Foo , then EF will map them to their own tables and I get two 1-to-1 relations, but this doesn't feel right. CreatedBy' of type 'User' I am using . Token' of type 'Token2'. InvalidOperationException: Unable to set up a many-to-many relationship between 'Claim. Manager == null project. InvalidOperationException: 'Unable Nov 17, 2021 · No application service provider was found. Build succeeded. Games. Jan 29, 2017 · Unable to determine the principal end of an association between the types 'TestApplication. InvalidOperationException: 'Unable to determine the relationship represented by navigation 'Activity. 0-preview. This is represented by the DefaultPrinter foreign key. Please help. I am quite new within the . Foreign1' of type 'EntityCountry'. Nov 4, 2021 · Unable to determine the relationship represented by navigation 'Article. Usually, we will build two different entities that require a many-to-many relationship, create an entity that will be purely used to join the first two entities, and then map one-to-many between this entity (created to join two separate one-to-many relationships) and the two Dec 8, 2016 · System. NET 6 to develop EF Core MVC program, The concept is single User can have multiple roles, and the role data is create by a User from another system. Each Device will be configured to use a particular printer by default. This is a one to many relationship. Ignore' in Oct 30, 2023 · System. Ignore' in 'OnModelCreating' My code: Aug 13, 2022 · Howard Hee Asks: Unable to determine the relationship represented by navigation 'Role. The idea is that a user has a list of messages that they have sent, and every message has a record of a user who sent the message, and another id of a user who received the message. Manager = null; context. I have a base class CreatableEntity. Ignore' in 'OnModelCreating' Dec 25, 2020 · In my ASP. WithMany(user => user. See full list on learn. Posts' of type 'ICollection<Post>'. Unable to determine the relationship represented by navigation property 'FightResult. One-to-One relationships are normally associated by PKs on both sides, however EF can be configured to establish a one -to-one relationship using either a one-to-many db-side relationship (FK on Right-side table) or a many-to-one db-side relationships (FK on Left-side table) Jan 28, 2024 · The exception 'Unable to determine the relationship represented by navigation 'Affiliation. ' Below are the model and dbcontext codes: Jul 29, 2021 · Unable to determine the relationship represented by navigation 'Ticket. Author' of type 'User'. Dec 10, 2019 · Perhaps I am missing something, but I don't agree with the idea that EF couldn't know if a Team is First or Second when adding to Team. Nov 8, 2023 · Unable to determine the relationship represented by navigation 'DialogueEntry. InvalidOperationException: Unable to determine the relationship represented by navigation property 'Post. Using InverseProperty Jun 16, 2017 · Unable to determine the relationship represented by navigation property 'Friendship. C' of type 'C'. Contacts' of type 'ICollection'. BoughtProducts' of type 'ICollection'. Apr 29, 2022 · Unable to determine the relationship represented by navigation 'StallType. StoreMainPhoto' of type 'StorePhotoModel'. MainClusterSystemUsers' of type 'ICollection<SystemUser>'. 0" setup globally while using . net8. Models { public class User May 29, 2017 · Unable to determine the relationship represented by navigation property 'Location. InvalidOperationException: Unable to determine the relationship represented by navigation ' Unable to determine the relationship represented by navigation property EF Core I have these classes as my domain models: When I add migration I get this error: Unable to determine the relationship represented by navigation 'Ticket. Each Printer may or may not be hosted on a specific device, this is represented by the Device foreign key on the Printer entity. FirstTeamId=Team. ProductQuestions' of type 'List<ProductQuestion>'. Data' and 'VersionItemsDataEntity' as both types have been marked as owned. I have no idea how to fix it. Aug 13, 2022 · Unable to determine the relationship represented by navigation 'Role. Jan 4, 2020 · I am new to Entity Framework Core 3. Ignore' in 'OnModelCreating'. Brands' of type 'ICollection<Brand>'. Dec 27, 2022 · Unable to determine the relationship represented by navigation 'Event. Messages' of type 'ICollection'. Either manually configured the relationship or ignore the prope Unable to determine the relationship represented by navigation property 'Course. 3 Unable to determine the relationship represented by navigation property 'ApplicationRole. NET Core 2. dotnet ef migrations add initial InvalidOperationException: Unable to determine the relationship represented by navigation property ‘AlumnoModel. Apr 16, 2018 · System. ' Here my code I have written so far: public class Member { // System. Faction' of type 'TeamModel'. E May 22, 2024 · DbContext' of type ''. Jul 3, 2016 · dotnet : System. ' System. Dec 10, 2018 · When i try to run this code i get an exception from EntityFramework that it is Unable to determine the relationship represented by navigation property 'Workflow1. Mar 27, 2022 · Unable to determine the relationship represented by navigation 'EmploymentLog. RequestProperties' of type 'List<NxProperty>'. InvalidOperationException: 'Unable to determine the relationship represented by navigation 'QualityControlSchema. Unable to determine the relationship represented by navigation property 'Child. Unable to determine the relationship represented by navigation property 'Contact. InvalidOperationException: Unable to determine the relationship represented by navigation property 'ItemRental. Here are my models: Hi, With EF Core 1. MasterTake' of type 'Take'. OnlineTeacher' of type 'Teacher'. Items’ of type ‘ICollection<Item>’. After upgrading a dotnet core application framework from 3. com Feb 4, 2024 · When trying to generate migrations for cyclic one-to-many relationships (see code below), EF Core can't recognize the relationship represented by a collection navigation even though it is explicitly configured. Oct 31, 2021 · Unable to determine the relationship represented by navigation 'Department. Reserves' of type 'ICollection<Reserve>'. Nov 17, 2020 · Unable to determine the relationship represented by navigation `Airport. AsezPoolFileStores' of type 'ICollection'. The InverseProperty attribute is applied to the navigation properties in the User class to specify their corresponding inverse navigation properties in Oct 20, 2017 · Unable to determine the relationship represented by navigation property 'EnumMeta. AspNetCore. LockedByUser' of type 'User'. See this image System. User' of type 'IList<ApplicationUser>'. 0. Entity<Post>() . If I understand correctly, this happens because I get the following error: Unable to determine the relationship represented by navigation property 'Member. Feb 21, 2023 · The query specified in the URI is not valid. cs: Sep 27, 2023 · Unable to determine the relationship represented by navigation 'AppUser. Authors' of type 'ICollection<Person>' What I am trying to do, each person could be an author, translator or a reviewer of different books. Permissions' of type 'ICollection<Permission>'. Feb 8, 2019 · System. microsoft. Entry(project). Reservations' of type 'List'. ' Aug 22, 2019 · When I place a breakpoint and drill into the Company data, I see the relationship, but I see no Server data. Finding DbContext classes in the project Found DbContext 'Context'. Nov 19, 2020 · Unable to determine the relationship represented by navigation 'TestAnswerChild. InvalidOperationException: Unable to determine the relationship represented by navigation 'NxLog. Jun 1, 2019 · 'Unable to determine the relationship represented by navigation property 'JToken. Mar 19, 2020 · Unable to determine the relationship represented by navigation property ASP. staffs' of type 'HashSet'. Jun 22, 2023 · Unable to determine the owner for the relationship between 'VersionItemsEntity. NET Entity Framework and currently, I am stuck when I am trying to implement some relationship between two entities. AssignedStudents' of type 'ICollection<Student>'. 0 Entity Framework 1 EF Unable to determine the relationship represented by navigation property Apr 5, 2019 · Unable to determine the relationship represented by navigation property Entity Framework Core 1 Unable to determine the relationship represented by navigation 'entitiy' of type 'ICollection<entity>' Feb 2, 2018 · System. EnderecoResidencial' of type 'Endereco'. Ignore' in Jan 11, 2024 · Unable to determine the relationship represented by navigation 'AppUser. Jan 11, 2021 · "Unable to determine the relationship represented by navigation 'BillingStatement. Creator' of type 'AppUser'. InvalidOperationException: 'Unable to determine the relationship represented by navigation property 'UserDao. Oct 26, 2022 · System. Either manually configure the ownership, or ignore the corresponding navigations using the [NotMapped] attribute or by using 'EntityTypeBuilder. 1 and trying to define the one-to-many relationship between two tables. If you want to override an existing relationship call 'Ignore' on the navigation 'MoneyTransaction. Error: Unable to determine the relationship represented by navigation property 'Category. " System. Users' of type 'IList'. NET core 2. Unable to determine the relationship represented by navigation property 'Branch. ParentLobbyId & Dec 26, 2019 · System. InvalidOperationException : Unable to determine the relationship represented by navigation 'Account. I ended up using Fluent API and ModelBuilder. Steps to reproduce Oct 6, 2020 · System. Room. Chosen' of type 'User'. Parent' of type 'JContainer'. Friend' of type 'User'. Trainee' of type 'Collection'. ActionUser' of type 'ApplicationUser'. PaidBy' first in 'OnModelCreating'. InvalidOperationException: Unable to determine the relationship represented by navigation 'TestCluster. Dec 19, 2018 · InvalidOperationException: Unable to determine the relationship represented by navigation property 'Relationship. 0 #9427 Closed kamleshdelat opened this issue Aug 16, 2017 · 20 comments Nov 2, 2020 · Unable to determine the relationship represented by navigation property 'Command. Acolyte' of type 'AcademyUser'. Jan 10, 2024 · System. The Location entity: Aug 3, 2019 · I'm developing an ASP. InvalidOperationException HResult=0x80131509 Message=Unable to determine the relationship represented by navigation property 'ResourcesAZEZ. ApprovedBy' of type 'Employee'. EF docs for references and navigation says: May 23, 2023 · Unable to determine the relationship represented by navigation 'CompanyAddressEntity. 7 Multiple Self-Referencing foreign keys: Unable to determine the relationship represented by navigation property. InvalidOperationException: Unable to determine the relationship represented by navigation property 'College. ' Here are my 2 models I want to have OneToOne relationship for Branch with Employee (Manager), and OneToMany relationship for Branch with Employee (Employees Of Branch) right now when I try to add migrations, it fails with. Apr 12, 2018 · System. Ignore' in 'OnModelCreating' Feb 9, 2021 · System. HasOne(post => post. Jan 6, 2021 · You need to create a class for Ingredient property. UserR' of type 'User'. 2 application that uses Entity Framework Core. Models. Ignore Entity framework is unable to determine the relationship represented by the CreatedBy and ModifiedBy navigation properties on the class inheriting them (Department). Creator' of type 'User'. Parent' of type 'Parent'. CreatedBy' of type 'User'. Content' of type 'List'. We only need to specify the navigation properties in each entity: modelBuilder. It throws an InvalidOperationException when I try to access data, giving back the following error: Unable to determine the relationship represented by navigation 'Dap. InvalidOperationException: Unable to determine the relationship represented by navigation property 'User. To you it's obvious which way round it is, but EF may reasonably see: May 16, 2023 · Unable to determine the relationship represented by navigation 'Blog. UserTask' of type 'UserTask'. InvalidOperationException: 'Unable to determine the relationship represented by navigation 'Account. InvalidOperationException: Unable to determine the relationship represented by navigation 'TcaOrganisation. I have a one-to-many relationship between OrganismoTransito (parent) and RadicacionCuenta (many). InvalidOperationException: Unable to determine the relationship represented by navigation property 'Project. Manager; project. Every Game has FirstTeamId and SecondTeamId and the configuration clearly says that, for a Game, if the foreign key Game. ' 'Unable to determine the relationship represented by navigation property 'AnswerOption. Ignore' in 'OnModelCreating' Jun 27, 2021 · I am trying to create a one-to-one foreign-key relationship between the below columns from Room to RoomBase. InvalidOperationException: 'Unable to determine the relationship represented by navigation property 'Language. Dec 4, 2020 · Unable to determine the relationship represented by navigation 'Movie. Error message: System. Sep 19, 2021 · Unable to determine the relationship represented by navigation 'Student. Manager' of type 'Employee' I understand the issue, but not able Nov 22, 2016 · EF is complaining it's unable to determine the relationship represented by the Parent navigation property. Unable to determine the relationship represented by navigation property 'Host. -5. GettingStore' of type 'StoreModel'" and "Unable to determine the relationship represented by navigation 'StoreModel. Using context 'Context'. HomeTeam' of type 'Team'. ". RoomId > RoomBase. Customer' and 'TestApplication. InvalidOperationException: 'Unable to determine the relationship represented by the navigation property 'FrontPage. ' was thrown while attempting to create an instance. Oct 14, 2022 · Solved : Unable to determine the relationship represented by navigation of type ICollection. PartyANavigation' of type 'Company'. Mar 18, 2022 · System. Insurance' of type 'Insurance'. Author) . Ignore' in 'OnModelCreating' Mar 5, 2023 · When I try Add-Migration, I get this error: Unable to determine the relationship represented by navigation 'Book. I am currently struggling and getting compilation errors. You have several options: A hack (you won't like it) // else { var manager = project. Claims' because one or both of the navigations don't have a corresponding CLR property. Platforms' of type 'ICollection'. May 2, 2018 · Unable to determine the relationship represented by navigation property 'Group. Jan 12, 2022 · Unable to determine the relationship represented by navigation 'Demo. 1 to 2. InvalidOperationException: Unable to determine the relationship represented by navigation property 'CharacterModel. At line:1 char:1. User. I have a one-to-many relationship reflected in a SQL Server diagram as follows: Some of the entity class for the Company is as follows: Dec 19, 2018 · Unable to determine the relationship represented by navigation property 'EntityCountry. InvalidOperationException: Unable to determine the relationship represented by navigation property 'Usuario. AuditedObject' of type 'AuditEFCoreWeakReference' | DevExpress Support Nov 24, 2019 · Unable to determine the relationship represented by navigation property ‘Cart. In addition to the navigation properties, we must also define the Oct 31, 2021 · Unable to determine the relationship represented by navigation 'Department. Mar 10, 2023 · I had the same problem the last day, and I found that it's just a library compatibility issue. User' of type 'MemberUser'. Anyway, the same relationship works well to others entities but not ApplicationUser. A potential additional complication is that the User class also has a property of class Department, which is unrelated to the CreatedBy and ModifiedBy properties on Department. ApplicationUser' of type 'ApplicationUser'. Apr 22, 2021 · But when I debug the code it throw an InvalidOperationException with message "Unable to determine the relationship represented by navigation 'B. Following is the sn Aug 7, 2020 · qsdfplkj changed the title multiple parents: Unable to determine the relationship represented by navigation property. May 30, 2022 · System. – Aug 9, 2019 · The many-to-many relationship is a tricky one; we need to understand how these kinds of relationships are built. Department' of type 'Department'. Clients' and 'Client. Nov 3, 2016 · System. InvalidOperationException: Unable to determine the relationship represented by navigation property 'Course. 0 it's breaking. Nov 16, 2021 · In one of our projects with multiple datacontexts this leads to an exception on building a datacontext model. I am still a beginner in this but I think I did this by the book (defined the relationship fully) so I don't get why EF Core is throwing this error: Unable to determine the relationship represented by navigation 'Asset. RoomId Room. Company' of type 'Company'. TcaUnits' of type 'IEnumerable'. UserMessageFromUser' of type 'ICollection<UserMessage>'. System. ' Aug 1, 2017 · Unable to determine the relationship represented by navigation property 'StoreModel. pDemoes' of type 'ICollection<PDemo>'. InvalidOperationException: Unable to determine the relationship represented by navigation property 'Exercise. MaintenanceWindows' of type 'MaintenanceWindowCollection'. lfgkq dbhv xyqd tyl adtq zdn samkom tezrloei zrszhlyj dheqhz