getting error when add migration in mvc core

Question

I am adding migration in my project but getting this error, i am using VS 20, already added first migration but now i want create new database table but getting this error

add-migration Registration
add-migration : The term 'add-migration' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the
spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ add-migration Registration
+ ~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (add-migration:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException

Sachin Singh · Answer

You need to install latest .NET sdk or vs2022

Garima Bansal · Answer

Sachin Singh if i try to install microsoft.entityframeworkcore.tools then it give error Error NETSDK1045 The current .NET SDK does not support targeting .NET 6.0. Either target .NET 5.0 or lower, or use a version of the .NET SDK that supports .NET 6.0. AgricultureApex C:\Program Files\dotnet\sdk\5.0.415\Sdks\Microsoft.NET.Sdk	argets\Microsoft.NET.TargetFrameworkInference.targets 141

Sachin Singh · Answer

Make sure microsoft.entityframeworkcore.tools is installed.

Garima Bansal · Answer

somehow , i try to add migration and it created add-migration Register Build started... Build succeeded. Microsoft.EntityFrameworkCore.Infrastructure[10403] Entity Framework Core 6.0.0 initialized 'AgricultureContext' using provider 'Microsoft.EntityFrameworkCore.SqlServer:6.0.0' with options: None but nothing created in migration class using Microsoft.EntityFrameworkCore.Migrations; #nullable disable namespace AgricultureApex.Migrations { public partial class Register : Migration { protected override void Up(MigrationBuilder migrationBuilder) { } protected override void Down(MigrationBuilder migrationBuilder) { } } } and then if i use command Remove-migration then it give this issue remove-migration Build started... Build succeeded. Microsoft.EntityFrameworkCore.Infrastructure[10403] Entity Framework Core 6.0.0 initialized 'AgricultureContext' using provider 'Microsoft.EntityFrameworkCore.SqlServer:6.0.0' with options: None Microsoft.EntityFrameworkCore.Database.Command[20101] Executed DbCommand (45ms) [Parameters=[], CommandType='Text', CommandTimeout='30'] SELECT 1 Microsoft.EntityFrameworkCore.Database.Command[20101] Executed DbCommand (34ms) [Parameters=[], CommandType='Text', CommandTimeout='30'] SELECT OBJECT_ID(N'[__EFMigrationsHistory]'); Microsoft.EntityFrameworkCore.Database.Command[20101] Executed DbCommand (8ms) [Parameters=[], CommandType='Text', CommandTimeout='30'] SELECT [MigrationId], [ProductVersion] FROM [__EFMigrationsHistory] ORDER BY [MigrationId]; The migration '20221222085450_PhysicalIndicesValueColumn' has already been applied to the database. Revert it and try again. If the migration has been applied to other databases, consider reverting its changes using a new migration instead.