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InvalidOperationException, A second operation star
ENTITY FRAMEWORK
Likes 102
Views 886
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InvalidOperationException, A second operation started on this context before a previous operation completed.
ENTITY FRAMEWORK
Likes: 102
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XmlException: The ':' character, hexadecimal value
XML
Likes 68
Views 87
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XmlException: The ':' character, hexadecimal value 0x3A, cannot be included in a name
XML
Likes: 68
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The name 'Category' does not exist in the current
.NET 5
Likes 21
Views 0
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The name 'Category' does not exist in the current context
.NET 5
Likes: 21
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Solved!! Dot Net Core 3.1 Error: Inspecting the st
DATABASES
Likes 98
Views 2377
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Solved!! Dot Net Core 3.1 Error: Inspecting the state of an object in the debuggee of type System.Reflection.MethodBase is not supported in this context
DATABASES
Likes: 98
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SqlException: New transaction is not allowed becau
.NET 7
Likes 65
Views 0
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SqlException: New transaction is not allowed because there are other threads running in the session
.NET 7
Likes: 65
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Ionic Cordova App Error(Stack on [Trans-pile Start
ANDROID
Likes 95
Views 276
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Ionic Cordova App Error(Stack on [Trans-pile Started])
ANDROID
Likes: 95
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The ONNX Runtime extensions library was not found
RESEARCH
Likes 14
Views 0
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The ONNX Runtime extensions library was not found. The Microsoft.ML.OnnxRuntime.Extensions NuGet package must be referenced by the project to use OrtExtensions.RegisterCustomOps
RESEARCH
Likes: 14
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setInterval in JavaScript not working
JAVASCRIPT
Likes 30
Views 0
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setInterval in JavaScript not working
JAVASCRIPT
Likes: 30
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Asp.Net Core EF Core Error: Cannot access a dispos
ENTITY FRAMEWORK
Likes 102
Views 3944
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Asp.Net Core EF Core Error: Cannot access a disposed object. A common cause of this error is disposing a context that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application. This may occur if you are calling Dispose() on the context, or wrapping the context in a using statement. If you are using dependency injection, you should let the dependency injection container take care of disposing context instances.
ENTITY FRAMEWORK
Likes: 102
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ObjectDisposedException: Cannot access a disposed
.NET 7
Likes 68
Views 0
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ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application
.NET 7
Likes: 68
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System.ObjectDisposedException: Cannot access a di
OTHER
Likes 68
Views 177
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System.ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependecy injection and then later trying to use the same context instance elsewhere in your application.
OTHER
Likes: 68
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The instance of entity type 'IdentityUserLogin<str
.NET 7
Likes 68
Views 455
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The instance of entity type 'IdentityUserLogin<string>' cannot be tracked because another instance with the same key value for {'LoginProvider', 'ProviderKey'} is already being tracked
.NET 7
Likes: 68
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Microsoft.EntityFrameworkCore.Database.Transaction
ENTITY FRAMEWORK
Likes 114
Views 2822
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Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.
ENTITY FRAMEWORK
Likes: 114
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_context.SaveChanges is not working
ENTITY FRAMEWORK
Likes 60
Views 0
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_context.SaveChanges is not working
ENTITY FRAMEWORK
Likes: 60
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Razor MVC Error : An Expression Tree may not conta
.NET 7
Likes 31
Views 11
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Razor MVC Error : An Expression Tree may not contain a dynamic operation
.NET 7
Likes: 31
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Proxmox Cluster won't start [no corum]
SERVERS
Likes 10
Views 0
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Proxmox Cluster won't start [no corum]
SERVERS
Likes: 10
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Software Development Good Practices
.NET 7
Likes 70
Views 231
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Software Development Good Practices
.NET 7
Likes: 70
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Machine Learning Notes
MACHINE LEARNING
Likes 108
Views 660
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Machine Learning Notes
MACHINE LEARNING
Likes: 108
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Unable to stop debugging. Operation not supported.
.NET 7
Likes 35
Views 0
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Unable to stop debugging. Operation not supported. Unknown error: 0x800004005
.NET 7
Likes: 35
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What is New in Asp Net 7 and EF Core 7 (Best Featu
RESEARCH
Likes 19
Views 0
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What is New in Asp Net 7 and EF Core 7 (Best Features)
RESEARCH
Likes: 19
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errorCode":"ERR_DIRECT_INVOKE","message":"failed g
DOCKER-COMPOSE
Likes 35
Views 0
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errorCode":"ERR_DIRECT_INVOKE","message":"failed getting app id either from the URL path or the header dapr-app-id
DOCKER-COMPOSE
Likes: 35
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Asp.Net Core 3.1 Entity Framwork Database Context
.NET 7
Likes 116
Views 949
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Asp.Net Core 3.1 Entity Framwork Database Context Error: System.ObjectDisposedException: 'Cannot access a disposed object
.NET 7
Likes: 116
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Asp.Net Core 3.1 Identity Error:InvalidOperationEx
.NET 7
Likes 95
Views 926
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Asp.Net Core 3.1 Identity Error:InvalidOperationException: Cannot create a DbSet for 'ClassModal' because this type is not included in the model for the context
.NET 7
Likes: 95
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Understanding ASP.Net Core 2.2 Database Context C
.NET 7
Likes 86
Views 418
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Understanding ASP.Net Core 2.2 Database Context Class
.NET 7
Likes: 86
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Http/2 Awesome read
NETWORK
Likes 84
Views 268
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Http/2 Awesome read
NETWORK
Likes: 84
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An Exception occurred in the database while saving
.NET 7
Likes 50
Views 0
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An Exception occurred in the database while saving changes for context type 'ContextType' Microsoft.Data.SqlClient.SqlException (0x80131904)
.NET 7
Likes: 50
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Here is what is going on this week at ErnesTech.co
GENERAL
Likes 48
Views 0
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Here is what is going on this week at ErnesTech.com
GENERAL
Likes: 48
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Visual Studio error "Attempted TextBuffer edit ope
TECHNOLOGY
Likes 69
Views 18
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Visual Studio error "Attempted TextBuffer edit operation while another edit is in progress"
TECHNOLOGY
Likes: 69
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[Solved] Asp.Net 5 Error: error RZ2008: Attribute
.NET 7
Likes 87
Views 257
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[Solved] Asp.Net 5 Error: error RZ2008: Attribute 'asp-for' on tag helper element 'label' requires a value
.NET 7
Likes: 87
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Microsoft Data SqlClient SqlException (0x80131904)
ENTITY FRAMEWORK
Likes 61
Views 0
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Microsoft Data SqlClient SqlException (0x80131904) New transaction is not allowed because there are other threads running in the session
ENTITY FRAMEWORK
Likes: 61
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docker: Cannot connect to the Docker daemon at uni
DOCKER
Likes 108
Views 380
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docker: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?.
DOCKER
Likes: 108
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Cannot create a DbSet for "MyModal" because this t
.NET 7
Likes 31
Views 0
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Cannot create a DbSet for "MyModal" because this type is not included in the model for the context. However the model contains an entity type with the same name in a different namespace
.NET 7
Likes: 31
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What is a Transformer in Machine-Learning
MACHINE LEARNING
Likes 14
Views 0
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What is a Transformer in Machine-Learning
MACHINE LEARNING
Likes: 14
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SqlNullValueException: Data is Null. This method o
ENTITY FRAMEWORK
Likes 42
Views 18
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SqlNullValueException: Data is Null. This method or property cannot be called on Null values
ENTITY FRAMEWORK
Likes: 42
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InvalidOperationException: The required column 'Ca
ENTITY FRAMEWORK
Likes 10
Views 0
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InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation
ENTITY FRAMEWORK
Likes: 10
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Why you should choose HomeAssistant as your Home A
RESEARCH
Likes 37
Views 0
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Why you should choose HomeAssistant as your Home Automation Software
RESEARCH
Likes: 37
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Machine Learning Best Resources
MACHINE LEARNING
Likes 88
Views 325
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Machine Learning Best Resources
MACHINE LEARNING
Likes: 88
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ERROR! The requested handler 'restart ufw' was not
SERVERS
Likes 37
Views 0
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ERROR! The requested handler 'restart ufw' was not found in either the main handlers list nor in the listening handlers list
SERVERS
Likes: 37
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$(...).modal is not a function
TECHNOLOGY
Likes 44
Views 0
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$(...).modal is not a function
TECHNOLOGY
Likes: 44
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Microsoft SQL Server, Error: 258
SQL
Likes 102
Views 492
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Microsoft SQL Server, Error: 258
SQL
Likes: 102
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Asp.Net Core 3.1 Razor View Error: CS1963: An expr
.NET 7
Likes 107
Views 745
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Asp.Net Core 3.1 Razor View Error: CS1963: An expression tree may not contain a dynamic operation
.NET 7
Likes: 107
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How to Add Cookies to the Http Response in AspNet
.NET 7
Likes 37
Views 30
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How to Add Cookies to the Http Response in AspNet 6 MVC
.NET 7
Likes: 37
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[Solved]: Invalid version: 16. (Microsoft.SqlServe
OTHER
Likes 24
Views 0
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[Solved]: Invalid version: 16. (Microsoft.SqlServer.Smo)
OTHER
Likes: 24
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can't ping a computer on network
HARDWARE
Likes 29
Views 0
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can't ping a computer on network
HARDWARE
Likes: 29
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How I solved ionic serve that did not work [Solve
ANDROID
Likes 91
Views 573
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How I solved ionic serve that did not work [Solve Ionic Transpile Problem]
ANDROID
Likes: 91
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[AspNet 5 Entity Framework 6 Error] InvalidOperati
.NET 7
Likes 59
Views 194
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[AspNet 5 Entity Framework 6 Error] InvalidOperationException: The property "ModelName.Id" has a temporary value while attempting to change the entity's state to "Modified". Either set a permanent value explicitly, or ensure that the database is configured to generate values for this property.
.NET 7
Likes: 59
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You don't want to miss out on this [New Book is no
GENERAL
Likes 31
Views 0
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You don't want to miss out on this [New Book is now available]
GENERAL
Likes: 31
Read Article
How to Solve XUnit Automated Testing Error: Castle
MVC
Likes 114
Views 1715
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How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException
MVC
Likes: 114
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[Solved] InvalidOperationException: The entity typ
MVC
Likes 91
Views 1509
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[Solved] InvalidOperationException: The entity type 'TableNameOrModelName' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'.
MVC
Likes: 91
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Asp.Net Adding Object to Database Error: Collectio
.NET 7
Likes 90
Views 291
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Asp.Net Adding Object to Database Error: Collection was modified; enumeration operation may not execute
.NET 7
Likes: 90
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