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NullReferenceException: Object reference not set t
TECHNOLOGY
Likes 111
Views 298
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NullReferenceException: Object reference not set to an instance of an object
TECHNOLOGY
Likes: 111
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An unhandled exception has occurred while executin
.NET 7
Likes 36
Views 0
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An unhandled exception has occurred while executing the request. System.ArgumentNullException: Value cannot be null. (Parameter 'buffer')
.NET 7
Likes: 36
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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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RuntimeBinderException: 'System.Dynamic.DynamicObj
.NET 7
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Views 0
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RuntimeBinderException: 'System.Dynamic.DynamicObject'does not contain a definition for 'Modal'
.NET 7
Likes: 37
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An unhandled exception occurred while processing t
.NET 7
Likes 75
Views 11
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An unhandled exception occurred while processing the request: FormatException: The header contains invalid values at index 0
.NET 7
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[Entity Framework Core 5] An Unhandled Exception O
ENTITY FRAMEWORK
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Views 302
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[Entity Framework Core 5] An Unhandled Exception Occurred While Processing the Request
ENTITY FRAMEWORK
Likes: 90
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Software Development Refactoring Wisdom I gained t
SOFTWARE DEVELOPMENT
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Views 175
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Software Development Refactoring Wisdom I gained through Reviewing My Own Code
SOFTWARE DEVELOPMENT
Likes: 84
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Asp.Net Programming Bad Practices
ALGORITHMS
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Views 0
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Asp.Net Programming Bad Practices
ALGORITHMS
Likes: 39
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InvalidOperationException: An exception was thrown
ENTITY FRAMEWORK
Likes 69
Views 0
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InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression
ENTITY FRAMEWORK
Likes: 69
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System.IO.FileNotFoundException: Could not load fi
.NET 7
Likes 43
Views 0
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System.IO.FileNotFoundException: Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe, Version=6.0.0.0, Culture=neutral
.NET 7
Likes: 43
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iis just in time debugging error
SERVERS
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Views 0
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iis just in time debugging error
SERVERS
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Cannot insert the value NULL into column 'Id', tab
RESEARCH
Likes 33
Views 0
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Cannot insert the value NULL into column 'Id', table 'TableName'; column does not allow nulls. INSERT fails
RESEARCH
Likes: 33
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[Solved] Asp.Net Core 3.1 config.GetSection return
.NET 7
Likes 117
Views 2590
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[Solved] Asp.Net Core 3.1 config.GetSection returns null. AppSettings.json null values.
.NET 7
Likes: 117
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What does COALESCE do in SQL
SQL
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Views 0
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What does COALESCE do in SQL
SQL
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How to check if string is null before replacing ch
SQL
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Views 382
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How to check if string is null before replacing charecters in C-Sharp (C#)
SQL
Likes: 85
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warning CS8632: The annotation for nullable refer
.NET 7
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Views 488
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warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
.NET 7
Likes: 70
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StreamJsonRpc.RemoteInvocationException: Cannot fi
QUESTIONS
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Views 0
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StreamJsonRpc.RemoteInvocationException: Cannot find the old value Parameter name: oldValue
QUESTIONS
Likes: 45
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SqlNullValueException: Data is Null. This method o
QUESTIONS
Likes 87
Views 809
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SqlNullValueException: Data is Null. This method or property cannot be called on Null values
QUESTIONS
Likes: 87
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_context.ChangeTracker 'threw an exception of type
.NET 7
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Views 300
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_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'
.NET 7
Likes: 70
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Asp.Net Core Error: InvalidOperationException: The
.NET 7
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Views 341
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Asp.Net Core Error: InvalidOperationException: The database generated a null value for non-nullable property 'PropertyName' of entity type 'EntityName'. Ensure value generation configuration in the database matches the configuration in the model
.NET 7
Likes: 96
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InvalidOperationException: Incorrect Content-Type
MVC
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Views 0
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InvalidOperationException: Incorrect Content-Type
MVC
Likes: 23
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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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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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[Solved] Asp.Net Core C-Sharp Error: IOException:
.NET 7
Likes 79
Views 424
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[Solved] Asp.Net Core C-Sharp Error: IOException: The process cannot access file because it is being used by another process
.NET 7
Likes: 79
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Cassandra Entity Framework Error "TypeLoadExceptio
QUESTIONS
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Views 0
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Cassandra Entity Framework Error "TypeLoadException: Method 'GenerateScript' in type"
QUESTIONS
Likes: 55
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There is no remote user 'distributor_admin' mapped
SQL
Likes 36
Views 0
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There is no remote user 'distributor_admin' mapped to local user '(null)' from the remote server 'repl_distributor'.
SQL
Likes: 36
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No matching IPassiveHealthCheckPolicy found for th
QUESTIONS
Likes 40
Views 0
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No matching IPassiveHealthCheckPolicy found for the passive health check policy name 'TransportFailureRateHealthPolicy'
QUESTIONS
Likes: 40
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[Solved] Entity Framework Core (EF 6) Error: Unabl
ENTITY FRAMEWORK
Likes 91
Views 593
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[Solved] Entity Framework Core (EF 6) Error: Unable to track an entity of type 'YourModalName' because primary key property 'id' is null.
ENTITY FRAMEWORK
Likes: 91
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System.TypeInitializationException: The type initi
LUNUX
Likes 31
Views 0
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System.TypeInitializationException: The type initializer for 'Gdip' threw an exception
LUNUX
Likes: 31
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Unhandled exception. System.InvalidOperationExcept
.NET 7
Likes 39
Views 0
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Unhandled exception. System.InvalidOperationException: This platform doesn't support QUIC or HTTP3
.NET 7
Likes: 39
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How to get localized string from ASP.NET Core Cont
.NET 7
Likes 38
Views 0
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How to get localized string from ASP.NET Core Controller Work Around
.NET 7
Likes: 38
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[Solved] System.InvalidOperationException: 'Unable
QUESTIONS
Likes 82
Views 578
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[Solved] System.InvalidOperationException: 'Unable to track an entity of type 'EntityName' because its primary key property 'Id' is null
QUESTIONS
Likes: 82
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Find Out Which Database Contain A Table
DATABASES
Likes 85
Views 318
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Find Out Which Database Contain A Table
DATABASES
Likes: 85
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What is New in C-Sharp 9 ( Developing Notes )
C-SHARP
Likes 92
Views 260
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What is New in C-Sharp 9 ( Developing Notes )
C-SHARP
Likes: 92
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C-Sharp 11 Tips and Tricks
RESEARCH
Likes 58
Views 90
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C-Sharp 11 Tips and Tricks
RESEARCH
Likes: 58
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Application startup exception: System.InvalidOpera
MVC
Likes 84
Views 865
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Application startup exception: System.InvalidOperationException: Cannot resolve scoped service from root provider
MVC
Likes: 84
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How to Optimize Web Server for Faster Response Tim
TECHNOLOGY
Likes 75
Views 338
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How to Optimize Web Server for Faster Response Time
TECHNOLOGY
Likes: 75
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InvalidOperation: The connection was not closed. T
ENTITY FRAMEWORK
Likes 41
Views 0
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InvalidOperation: The connection was not closed. The connections current state is connecting
ENTITY FRAMEWORK
Likes: 41
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ArgumentException: Affinity key name set on the cl
SERVERS
Likes 35
Views 0
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ArgumentException: Affinity key name set on the cluster 'allclusterprops' must not be null.
SERVERS
Likes: 35
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An Exception was thrown while attempting to evalua
.NET 7
Likes 41
Views 0
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An Exception was thrown while attempting to evaluate the LINQ query parameter expression
.NET 7
Likes: 41
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Entity Framework Core Error: Unable to track an en
ENTITY FRAMEWORK
Likes 96
Views 976
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Entity Framework Core Error: Unable to track an entity of type "Model Class Object" because primary key property 'id' is null
ENTITY FRAMEWORK
Likes: 96
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Drupal 8 Bootstrap 4 Not Loading CSS Files
BOOTSTRAP
Likes 90
Views 298
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Drupal 8 Bootstrap 4 Not Loading CSS Files
BOOTSTRAP
Likes: 90
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NotSupportedException: Path 'wwwroot myfolder file
.NET 7
Likes 29
Views 0
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NotSupportedException: Path 'wwwroot myfolder filename.txt' was not rooted
.NET 7
Likes: 29
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[EF Core] How to Enable Sensitive Data Logging and
ENTITY FRAMEWORK
Likes 33
Views 0
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[EF Core] How to Enable Sensitive Data Logging and Detailed Errors
ENTITY FRAMEWORK
Likes: 33
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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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The configured execution strategy 'SlqServerRetryi
.NET 7
Likes 57
Views 0
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The configured execution strategy 'SlqServerRetryingExecutionStrategy' does not support user-initiated transactions. Use the execution strategy returned by DbContext.Database.CreateExecutionStrategy()' to execute
.NET 7
Likes: 57
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System.InvalidOperationException: The ConnectionSt
ENTITY FRAMEWORK
Likes 31
Views 0
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System.InvalidOperationException: The ConnectionString property has not been initialized [EF Core 7, Asp.Net 7]
ENTITY FRAMEWORK
Likes: 31
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InvalidOperationException: An error was generated
.NET 7
Likes 58
Views 35
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InvalidOperationException: An error was generated for warning 'Microsoft.EntityFrameworkCore.Query.InvalidIncludePathError': Unable to find navigation 'EntityName' specified in string based include path 'AnotherEntity Name'.
.NET 7
Likes: 58
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SqlException: Cannot insert the value NULL into co
ENTITY FRAMEWORK
Likes 49
Views 0
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SqlException: Cannot insert the value NULL into column 'Id', table 'dbo.TableName'; column does not allow nulls. INSERT fails. The statement has been terminated
ENTITY FRAMEWORK
Likes: 49
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Keyword or statement option 'bulkadmin' is not sup
SQL
Likes 47
Views 0
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Keyword or statement option 'bulkadmin' is not supported on the 'Linux' platform
SQL
Likes: 47
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