How to create new migration on vs code in N-Tier projectmy asp.net mvc 2.0 application fails with error “No parameterless constructor defined for this object”Error with SQLXMLCommand and Deployment to IIS 6.0SHDocVw InternetExplorer printing Serverside failing — COM exceptionEF6 Code First Pre-generated views for c#No parameterless constructor defined for this object for home controllerASP.NET MVC 5 Unity IIS Deploy Paramterless constructor errorUsing DbContextScopeFactory with UnityNo parameterless constructor defined for this object in automapperASP.NET Core 2 System.MissingMethodException: No parameterless constructor defined for this objectIDesignTimeDbContextFactory not working as expected
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How to create new migration on vs code in N-Tier project
my asp.net mvc 2.0 application fails with error “No parameterless constructor defined for this object”Error with SQLXMLCommand and Deployment to IIS 6.0SHDocVw InternetExplorer printing Serverside failing — COM exceptionEF6 Code First Pre-generated views for c#No parameterless constructor defined for this object for home controllerASP.NET MVC 5 Unity IIS Deploy Paramterless constructor errorUsing DbContextScopeFactory with UnityNo parameterless constructor defined for this object in automapperASP.NET Core 2 System.MissingMethodException: No parameterless constructor defined for this objectIDesignTimeDbContextFactory not working as expected
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I wanna create migration on my N-Tier project on VS Code, but when I select my Data project and run the command, I get a error below. Can you help me?
System.MissingMethodException: No parameterless constructor defined for this object.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean wrapExceptions, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean wrapExceptions, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean wrapExceptions)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContextFromFactory(Type factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(Func`1 factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(String contextType)
at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
No parameterless constructor defined for this object.
sql asp.net entity-framework core
edited Mar 22 at 22:55
Urosh T.
78821420
asked Mar 22 at 22:14
Hasan_HHasan_H
11
add a comment |
I wanna create migration on my N-Tier project on VS Code, but when I select my Data project and run the command, I get a error below. Can you help me?
System.MissingMethodException: No parameterless constructor defined for this object.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean wrapExceptions, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean wrapExceptions, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean wrapExceptions)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContextFromFactory(Type factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(Func`1 factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(String contextType)
at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
No parameterless constructor defined for this object.
sql asp.net entity-framework core
edited Mar 22 at 22:55
Urosh T.
78821420
asked Mar 22 at 22:14
Hasan_HHasan_H
11
Have you manually defined any constructors for any of your models?
– rad
Mar 22 at 22:19
add a comment |
I wanna create migration on my N-Tier project on VS Code, but when I select my Data project and run the command, I get a error below. Can you help me?
System.MissingMethodException: No parameterless constructor defined for this object.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean wrapExceptions, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean wrapExceptions, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean wrapExceptions)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContextFromFactory(Type factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(Func`1 factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(String contextType)
at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
No parameterless constructor defined for this object.
sql asp.net entity-framework core
edited Mar 22 at 22:55
Urosh T.
78821420
asked Mar 22 at 22:14
Hasan_HHasan_H
11
I wanna create migration on my N-Tier project on VS Code, but when I select my Data project and run the command, I get a error below. Can you help me?
System.MissingMethodException: No parameterless constructor defined for this object.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean wrapExceptions, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean wrapExceptions, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean wrapExceptions)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContextFromFactory(Type factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(Func`1 factory)
at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(String contextType)
at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
No parameterless constructor defined for this object.
sql asp.net entity-framework core
sql asp.net entity-framework core
edited Mar 22 at 22:55
Urosh T.
78821420
asked Mar 22 at 22:14
Hasan_HHasan_H
11
edited Mar 22 at 22:55
Urosh T.
78821420
asked Mar 22 at 22:14
Hasan_HHasan_H
11
edited Mar 22 at 22:55
Urosh T.
78821420
edited Mar 22 at 22:55
Urosh T.
78821420
edited Mar 22 at 22:55
Urosh T.
78821420
78821420
asked Mar 22 at 22:14
Hasan_HHasan_H
11
asked Mar 22 at 22:14
Hasan_HHasan_H
11
asked Mar 22 at 22:14
Hasan_HHasan_H
11
11
Have you manually defined any constructors for any of your models?
– rad
Mar 22 at 22:19
add a comment |
Have you manually defined any constructors for any of your models?
– rad
Mar 22 at 22:19
Have you manually defined any constructors for any of your models?
– rad
Mar 22 at 22:19
Have you manually defined any constructors for any of your models?
– rad
Mar 22 at 22:19
add a comment |
1 Answer
1
active
oldest
votes
Possibly you have defined parametric constructor(s) for one (or more) of your model classes and hence prevented the compiler to automatically generate a default (parameter-less) constructor for your model class(es) and since entity framework needs a default constructor for every model class, it's throwing an exception.
What you need to do is to define a parameter-less constructor for every model that has a user-defined parametric constructor.
answered Mar 22 at 22:36
radrad
2,5701816
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
add a comment |
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1 Answer
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votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Possibly you have defined parametric constructor(s) for one (or more) of your model classes and hence prevented the compiler to automatically generate a default (parameter-less) constructor for your model class(es) and since entity framework needs a default constructor for every model class, it's throwing an exception.
What you need to do is to define a parameter-less constructor for every model that has a user-defined parametric constructor.
answered Mar 22 at 22:36
radrad
2,5701816
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
add a comment |
Possibly you have defined parametric constructor(s) for one (or more) of your model classes and hence prevented the compiler to automatically generate a default (parameter-less) constructor for your model class(es) and since entity framework needs a default constructor for every model class, it's throwing an exception.
What you need to do is to define a parameter-less constructor for every model that has a user-defined parametric constructor.
answered Mar 22 at 22:36
radrad
2,5701816
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
add a comment |
Possibly you have defined parametric constructor(s) for one (or more) of your model classes and hence prevented the compiler to automatically generate a default (parameter-less) constructor for your model class(es) and since entity framework needs a default constructor for every model class, it's throwing an exception.
What you need to do is to define a parameter-less constructor for every model that has a user-defined parametric constructor.
answered Mar 22 at 22:36
radrad
2,5701816
Possibly you have defined parametric constructor(s) for one (or more) of your model classes and hence prevented the compiler to automatically generate a default (parameter-less) constructor for your model class(es) and since entity framework needs a default constructor for every model class, it's throwing an exception.
What you need to do is to define a parameter-less constructor for every model that has a user-defined parametric constructor.
answered Mar 22 at 22:36
radrad
2,5701816
edited Mar 22 at 22:44
answered Mar 22 at 22:36
radrad
2,5701816
answered Mar 22 at 22:36
radrad
2,5701816
answered Mar 22 at 22:36
radrad
2,5701816
2,5701816
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
add a comment |
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
Thank you for your help.
– Hasan_H
Mar 25 at 10:15
add a comment |
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Have you manually defined any constructors for any of your models?
– rad
Mar 22 at 22:19