Hi, I'am use .NET 9.0 i found problem when i create new scaffolding item it error message Error while try to add saffloding "startIndex cannot be larger than length of string. (Parameter 'startIndex')" and cannot create it.  That i can connect yo database and migration on database. <Project Sdk="Microsoft.NET.Sdk.Web"> <PropertyGroup> <TargetFramework>net9.0</TargetFramework> <Nullable>enable</Nullable> <ImplicitUsings>enable</ImplicitUsings> </PropertyGroup> <ItemGroup> <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0" /> <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.0" /> <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.0"> <PrivateAssets>all</PrivateAssets> <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> </PackageReference> <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.0" /> <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.0"> <PrivateAssets>all</PrivateAssets> <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> </PackageReference> <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="9.0.0" /> <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.EntityFrameworkCore" Version="9.0.0" /> <PackageReference Include="Swashbuckle.AspNetCore" Version="7.1.0" /> </ItemGroup> </Project> After that I found how to solve it problem I'm change Reginal Format on window 11 to English (United State) that can Solve problem it.  I would like to know why this problem was opened.