Solved Solutions to computer programming Errors

EF Core 6 Error: Error Number:262,State:1,Class:14

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EF Core 6 Error: Error Number:262,State:1,Class:14 CREATE TABLE permission denied in database

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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.

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Error The instance of entity type ModalType cannot

.NET 7
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Error The instance of entity type ModalType cannot be tracked because another instance with the key value {id: 7656544} is already being tracked.

.NET 7
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What is New in Asp Net 7 and EF Core 7 (Best Featu

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What is New in Asp Net 7 and EF Core 7 (Best Features)

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Publish has encountered an error. Build failed. Ch

.NET 7
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Publish has encountered an error. Build failed. Check the Output window for more details

.NET 7
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Azure SSH: Permission denied (publickey): How to a

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Azure SSH: Permission denied (publickey): How to add Public Key to Azure Virtual Machine (VM) to login with SSH Key

SERVERS
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Entity Framework Core Error: To change the IDENTIT

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Entity Framework Core Error: To change the IDENTITY property of a column, the column needs to be dropped and recreated

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How to Solve XUnit Automated Testing Error: Castle

MVC
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How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException

MVC
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InvalidOperationException: An exception was thrown

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InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression

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pull access denied for microsoft/mssql-server-lin

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pull access denied for microsoft/mssql-server-linux, repository does not exist or may require 'docker login': denied: requested access to the resource is denied

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Performance Tuning for ASP.NET Web Applications

.NET 7
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Performance Tuning for ASP.NET Web Applications

.NET 7
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InvalidOperationException: The required column 'Ca

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InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation

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Entity framework "InvalidCastException: Unable to

.NET 7
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Entity framework "InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Decimal."

.NET 7
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Cassandra Entity Framework Error "TypeLoadExceptio

QUESTIONS
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Cassandra Entity Framework Error "TypeLoadException: Method 'GenerateScript' in type"

QUESTIONS
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Entity Framework Core 6 and 7 Tips and Tricks

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Entity Framework Core 6 and 7 Tips and Tricks

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_context.SaveChanges is not working

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_context.SaveChanges is not working

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InvalidOperation: The connection was not closed. T

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InvalidOperation: The connection was not closed. The connections current state is connecting

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[EF Core] How to Enable Sensitive Data Logging and

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[EF Core] How to Enable Sensitive Data Logging and Detailed Errors

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CSS not rendering in Ruby on Rails [Development No

FRONT-END
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CSS not rendering in Ruby on Rails [Development Notes]

FRONT-END
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HTTP Error 500.19 Internal server error

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HTTP Error 500.19 Internal server error

SERVERS
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GitKraken Error Applying Stash could not open dire

GIT
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GitKraken Error Applying Stash could not open directory Access is denied

GIT
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How to get the last record of Entity Framework mod

.NET 7
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How to get the last record of Entity Framework model data

.NET 7
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Asp.Net Core Error: InvalidOperationException: The

.NET 7
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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
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The configured execution strategy 'SlqServerRetryi

.NET 7
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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
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The expression 'b.listOfFileRecords' is invalid in

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The expression 'b.listOfFileRecords' is invalid inside an 'Include' operation, since it does not represent a property access

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If posting to a group, requires app being installe

QUESTIONS
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If posting to a group, requires app being installed in the group

QUESTIONS
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RoboCopy (Batch Files)

WINDOWS
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RoboCopy (Batch Files)

WINDOWS
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Microsoft.EntityFrameworkCore.Database.Transaction

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Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.

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Asp.Net Core EF Core Error: Cannot access a dispos

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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.

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How to Connect to Azure Lunux Virtual Machine Usin

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How to Connect to Azure Lunux Virtual Machine Using SSH Private Key in Putty

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Connection Timeout Expired. The timeout period el

HOME
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Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake

HOME
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Asp.Net 5 Development Notes (DotNet Core 3.1 Study

SOFTWARE DEVELOPMENT
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Asp.Net 5 Development Notes (DotNet Core 3.1 Study Notes)

SOFTWARE DEVELOPMENT
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How to Count the Number of records in the Database

.NET 7
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How to Count the Number of records in the Database Table using Asp.Net Core Entity Framework Core

.NET 7
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SQL Server Tips and Tricks

SQL
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SQL Server Tips and Tricks

SQL
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_context.ChangeTracker 'threw an exception of type

.NET 7
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_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'

.NET 7
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InvalidOperationException: An error was generated

.NET 7
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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
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SqlException: A connection was successfully establ

.NET 7
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SqlException: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)

.NET 7
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System.ObjectDisposedException: Cannot access a di

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
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The type namespace QuickGrid could not be found

.NET 5
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The type namespace QuickGrid could not be found

.NET 5
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Microsoft Data SqlClient SqlException (0x80131904)

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Microsoft Data SqlClient SqlException (0x80131904) New transaction is not allowed because there are other threads running in the session

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Solved!! data directory "/var/lib/postgresql/10/ma

SQL
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Solved!! data directory "/var/lib/postgresql/10/main" has group or world access

SQL
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PJSIP Commands

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Android Studio Clear Read Only Failed

ANDROID
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Android Studio Clear Read Only Failed

ANDROID
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[HTTP Error 500.30]: Failed to load coreclr.Except

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[HTTP Error 500.30]: Failed to load coreclr.Exception message CLR worker thread exited prematurely

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System.InvalidOperationException: The ConnectionSt

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System.InvalidOperationException: The ConnectionString property has not been initialized [EF Core 7, Asp.Net 7]

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How to Sign Out a User when Session Expires in Asp

.NET 7
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How to Sign Out a User when Session Expires in AspNetCore

.NET 7
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Putty: Server refused our key

RESEARCH
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Putty: Server refused our key

RESEARCH
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EF Core 6 Error permission denied

EF Core 6 Error: Error Number:262,State:1,Class:14

EF Core 6 Error: Error Number:262,State:1,Class:14 CREATE TABLE permission denied in database

Connection error 401: permission denied - invalid

Connection error 401: permission denied - invalid PVE ticket

[emerg] 28713#28713: open() "/var/run/nginx.pid" f

[emerg] 28713#28713: open() "/var/run/nginx.pid" failed (13: Permission denied)

Cordova App access Denied

Cordova App access Denied

[Solved] Entity Framework Core (EF 6) Error: Unabl

[Solved] Entity Framework Core (EF 6) Error: Unable to track an entity of type 'YourModalName' because primary key property 'id' is null.

Error The instance of entity type ModalType cannot

Error The instance of entity type ModalType cannot be tracked because another instance with the key value {id: 7656544} is already being tracked.

What is New in Asp Net 7 and EF Core 7 (Best Featu

What is New in Asp Net 7 and EF Core 7 (Best Features)

Publish has encountered an error. Build failed. Ch

Publish has encountered an error. Build failed. Check the Output window for more details

Azure SSH: Permission denied (publickey): How to a

Azure SSH: Permission denied (publickey): How to add Public Key to Azure Virtual Machine (VM) to login with SSH Key

Entity Framework Core Error: To change the IDENTIT

Entity Framework Core Error: To change the IDENTITY property of a column, the column needs to be dropped and recreated

How to Solve XUnit Automated Testing Error: Castle

How to Solve XUnit Automated Testing Error: Castle DynamicProxy InvalidProxyConstructorArgumentsException

InvalidOperationException: An exception was thrown

InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression

pull access denied for microsoft/mssql-server-lin

pull access denied for microsoft/mssql-server-linux, repository does not exist or may require 'docker login': denied: requested access to the resource is denied

Performance Tuning for ASP.NET Web Applications

Performance Tuning for ASP.NET Web Applications

InvalidOperationException: The required column 'Ca

InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation

Entity framework "InvalidCastException: Unable to

Entity framework "InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Decimal."

Cassandra Entity Framework Error "TypeLoadExceptio

Cassandra Entity Framework Error "TypeLoadException: Method 'GenerateScript' in type"

Entity Framework Core 6 and 7 Tips and Tricks

Entity Framework Core 6 and 7 Tips and Tricks

_context.SaveChanges is not working

_context.SaveChanges is not working

InvalidOperation: The connection was not closed. T

InvalidOperation: The connection was not closed. The connections current state is connecting

[EF Core] How to Enable Sensitive Data Logging and

[EF Core] How to Enable Sensitive Data Logging and Detailed Errors

CSS not rendering in Ruby on Rails [Development No

CSS not rendering in Ruby on Rails [Development Notes]

HTTP Error 500.19 Internal server error

HTTP Error 500.19 Internal server error

GitKraken Error Applying Stash could not open dire

GitKraken Error Applying Stash could not open directory Access is denied

How to get the last record of Entity Framework mod

How to get the last record of Entity Framework model data

Asp.Net Core Error: InvalidOperationException: The

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

The configured execution strategy 'SlqServerRetryi

The configured execution strategy 'SlqServerRetryingExecutionStrategy' does not support user-initiated transactions. Use the execution strategy returned by DbContext.Database.CreateExecutionStrategy()' to execute

The expression 'b.listOfFileRecords' is invalid in

The expression 'b.listOfFileRecords' is invalid inside an 'Include' operation, since it does not represent a property access

If posting to a group, requires app being installe

If posting to a group, requires app being installed in the group

RoboCopy (Batch Files)

RoboCopy (Batch Files)

Microsoft.EntityFrameworkCore.Database.Transaction

Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.

Asp.Net Core EF Core Error: Cannot access a dispos

How to Connect to Azure Lunux Virtual Machine Usin

How to Connect to Azure Lunux Virtual Machine Using SSH Private Key in Putty

Connection Timeout Expired. The timeout period el

Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake

Asp.Net 5 Development Notes (DotNet Core 3.1 Study

Asp.Net 5 Development Notes (DotNet Core 3.1 Study Notes)

How to Count the Number of records in the Database

How to Count the Number of records in the Database Table using Asp.Net Core Entity Framework Core

SQL Server Tips and Tricks

SQL Server Tips and Tricks

_context.ChangeTracker 'threw an exception of type

_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'

InvalidOperationException: An error was generated

InvalidOperationException: An error was generated for warning 'Microsoft.EntityFrameworkCore.Query.InvalidIncludePathError': Unable to find navigation 'EntityName' specified in string based include path 'AnotherEntity Name'.

SqlException: A connection was successfully establ

SqlException: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)