CS0108 – xyz hides inherited member. Use the new keyword if hiding was intended
The CS0108 error in C# occurs when a member (e.g., a method, property, or field) in a derived class has the same name as a member in the base class,….
Category: DotNet
CS0168 – Variable ‘xyz’ is declared but never used
The CS0168 error in C# occurs when a variable is declared but never used in the code. This is a compiler warning (not an error) that helps developers identify unused….
Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRing – A valid key was not found
The Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRing error indicating “A valid key was not found” occurs in ASP.NET Core applications when the Data Protection system cannot find a valid key to encrypt or decrypt data…..
System.IdentityModel.Tokens.SecurityTokenExpiredException – The token has expired
The System.IdentityModel.Tokens.SecurityTokenExpiredException – The token has expired exception is thrown when a token, typically a JWT (JSON Web Token), has reached its expiration time and is no longer valid for….
Microsoft.AspNetCore.Authentication.JwtBearer.JwtBearerEvents – The token is expired
The Microsoft.AspNetCore.Authentication.JwtBearer.JwtBearerEvents error indicating “The token is expired” occurs in ASP.NET Core applications when a JSON Web Token (JWT) used for authentication has expired. This error is common in JWT-based….
Microsoft.AspNetCore.Authentication.AuthenticationException – Failed to authenticate user
The Microsoft.AspNetCore.Authentication.AuthenticationException with the message “Failed to authenticate user” occurs in ASP.NET Core applications when the authentication process fails. This error typically happens due to invalid credentials, misconfigured authentication middleware,….
System.Security.Cryptography.CryptographicException – Key not valid for use in specified state
The System.Security.Cryptography.CryptographicException with the message “Key not valid for use in specified state” occurs in .NET when a cryptographic operation is attempted with a key that is either invalid, corrupted,….
Microsoft.Extensions.Options.OptionsValidationException – Failed to validate configuration
The Microsoft.Extensions.Options.OptionsValidationException – Failed to validate configuration is an exception that occurs in .NET applications when the configuration options validation fails. This is typically used in scenarios where you are….
System.Reflection.AmbiguousMatchException – Multiple methods found matching the criteria
The System.Reflection.AmbiguousMatchException occurs in .NET when reflection is used to search for a method, property, or field, and multiple matches are found that satisfy the search criteria. This error typically….
System.TypeInitializationException – The type initializer for ‘xyz’ threw an exception
The System.TypeInitializationException occurs in .NET applications when the static constructor (type initializer) of a class (xyz) throws an exception. This error indicates that something went wrong during the initialization of….