✅ Razor pages template gives me an immediate build error

King TMK 🎗 · 2024-11-21T22:32:24.153Z

Why is it telling me "The type or namespace name 'EntityFrameworkCore' does not exist in the namespace 'Microsoft.AspNetCore.Identity'" right after I generated a Razor pages project template with single user authentication enabled? How do I fix this?

S

sibber•11/21/24, 10:38 PM

thats weird

S

sibber•11/21/24, 10:38 PM

try adding the package manually

K

King TMK 🎗OP•11/21/24, 10:39 PM

I've tried to remove and add them again, but I'm getting the same thing

S

sibber•11/21/24, 10:40 PM

you have the package added?

S

sibber•11/21/24, 10:40 PM

can i see the csproj?

K

King TMK 🎗OP•11/21/24, 10:40 PM

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <UserSecretsId>aspnet-WebApplication1-a42b01ed-c7dc-4819-ab9a-22e019eed651</UserSecretsId>
  </PropertyGroup>

  <ItemGroup>
      <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8" />
  </ItemGroup>

</Project>

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <UserSecretsId>aspnet-WebApplication1-a42b01ed-c7dc-4819-ab9a-22e019eed651</UserSecretsId>
  </PropertyGroup>

  <ItemGroup>
      <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8" />
  </ItemGroup>

</Project>

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <UserSecretsId>aspnet-WebApplication1-a42b01ed-c7dc-4819-ab9a-22e019eed651</UserSecretsId>
  </PropertyGroup>

  <ItemGroup>
      <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8" />
  </ItemGroup>

</Project>

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <UserSecretsId>aspnet-WebApplication1-a42b01ed-c7dc-4819-ab9a-22e019eed651</UserSecretsId>
  </PropertyGroup>

  <ItemGroup>
      <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.8" />
      <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.8" />
      <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8" />
  </ItemGroup>

</Project>

S

sibber•11/21/24, 10:40 PM

to be clear, youre just creating the project and changing nothing right?

K

King TMK 🎗OP•11/21/24, 10:41 PM

That's right

S

sibber•11/21/24, 10:41 PM

visual studio?

K

King TMK 🎗OP•11/21/24, 10:41 PM

I created it and immediately tried to build it but it gave me build errors

K

King TMK 🎗OP•11/21/24, 10:41 PM

Yes

S

sibber•11/21/24, 10:41 PM

can you clean and try to build from the cli?

S

sibber•11/21/24, 10:41 PM

make sure obj and bin are deleted

K

King TMK 🎗OP•11/21/24, 10:42 PM

Where's obj and bin, I'm completely new to dotnet

S

sibber•11/21/24, 10:42 PM

in the output folder

S

sibber•11/21/24, 10:44 PM

oops sorry its in the same folder as the csproj

S

sibber•11/21/24, 10:44 PM

it is the build output folder

S

sibber•11/21/24, 10:44 PM

forgot for a sec

S

sibber•11/21/24, 10:44 PM

anyway

S

sibber•11/21/24, 10:44 PM

just delete those, then

dotnet clean

dotnet clean

and

dotnet build

dotnet build

K

King TMK 🎗OP•11/21/24, 10:45 PM

Thanks, I did now, but after building it's telling me

C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.UI. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.SqlServer. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.Tools. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages

C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.UI. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.SqlServer. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.Tools. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages

C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.UI. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.SqlServer. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.Tools. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages

C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.EntityFrameworkCore. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.AspNetCore.Identity.UI. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.SqlServer. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages
C:\Users\tomkr\source\repos\WebApplication1\WebApplication1\WebApplication1.csproj : error NU1101: Unable to find package Microsoft.EntityFrameworkCore.Tools. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Microsoft Visual Studio Offline Packages

S

sibber•11/21/24, 10:46 PM

ah

S

sibber•11/21/24, 10:46 PM

you need to add nuget.org as a source

K

King TMK 🎗OP•11/21/24, 10:46 PM

How do I do that, and how come?

S

sibber•11/21/24, 10:47 PM

what does

dotnet nuget list source

dotnet nuget list source

dotnet nuget list source

dotnet nuget list source output?

K

King TMK 🎗OP•11/21/24, 10:47 PM

Registered Sources:
  1.  Microsoft Visual Studio Offline Packages [Enabled]
      C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\

Registered Sources:
  1.  Microsoft Visual Studio Offline Packages [Enabled]
      C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\

Registered Sources:
  1.  Microsoft Visual Studio Offline Packages [Enabled]
      C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\

Registered Sources:
  1.  Microsoft Visual Studio Offline Packages [Enabled]
      C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\

S

sibber•11/21/24, 10:47 PM

yeah for some reason nuget.org isnt there

S

sibber•11/21/24, 10:47 PM

how did you download .net btw?

S

sibber•11/21/24, 10:48 PM

dotnet nuget add source https://api.nuget.org/v3/index.json --name nuget.org

dotnet nuget add source https://api.nuget.org/v3/index.json --name nuget.org

dotnet nuget add source https://api.nuget.org/v3/index.json --name nuget.org

dotnet nuget add source https://api.nuget.org/v3/index.json --name nuget.org to add it

K

King TMK 🎗OP•11/21/24, 10:48 PM

I believe it was through the installer from the browser, I don't remember now, it was quite some time ago

K

King TMK 🎗OP•11/21/24, 10:49 PM

It looks like it's building correctly now

S

sibber•11/21/24, 10:49 PM

every once in a while someone would come here with the same issue where nuget.org not added as a source

S

sibber•11/21/24, 10:49 PM

and im yet to figure out how that happens

S

sibber•11/21/24, 10:49 PM

it should be the default

K

King TMK 🎗OP•11/21/24, 10:51 PM

Don't give up

K

King TMK 🎗OP•11/21/24, 10:51 PM

Thank you though, it built now

S

sibber•11/21/24, 10:51 PM

$close

Ssibber $close

M

MODiX•11/21/24, 10:51 PM

If you have no further questions, please use /close to mark the forum thread as answered

✅ Razor pages template gives me an immediate build error

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