How to build?

[rstm-sf]

Windows 10
.NET SDKs installed: 6.0.408, 7.0.306

MSBuild version 17.3.2+561848881 for .NET
  Determining projects to restore...
  All projects are up-to-date for restore.
  Bundle -> .\OpenApi\src\Bundle\bin\Debug\net6.0\RendleLabs.OpenApi.Bundle.dll
  Generator -> .\OpenApi\src\Generator\bin\Debug\net6.0\RendleLabs.OpenApi.Generator.dll
  Web -> .\OpenApi\src\Web\bin\Debug\net6.0\RendleLabs.OpenApi.Web.dll
.\OpenApi\src\Analyzer\ControllerAnalyzer.cs(38,23): error CS0101: The namespace 'Analyzer' already contains a definition for 'AttributeHelper' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TypeHelper.cs(7,23): error CS0101: The namespace 'Analyzer' already contains a definition for 'TypeHelper' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\NamespaceHelper.cs(5,23): error CS0101: The namespace 'Analyzer' already contains a definition for 'NamespaceHelper' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TextHelpers.cs(3,21): error CS0101: The namespace 'Analyzer' already contains a definition for 'TextHelpers' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\ControllerAnalyzer.cs(40,24): error CS0111: Type 'AttributeHelper' already defines a member called 'HasHttpMethodAttribute' with the same parameter types [.\OpenApi\src\Analyzer\Analyz
er.csproj]
.\OpenApi\src\Analyzer\ControllerAnalyzer.cs(50,25): error CS0111: Type 'AttributeHelper' already defines a member called 'IsHttpMethodAttribute' with the same parameter types [.\OpenApi\src\Analyzer\Analyze
r.csproj]
.\OpenApi\src\Analyzer\TypeHelper.cs(9,24): error CS0111: Type 'TypeHelper' already defines a member called 'Inherits' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TypeHelper.cs(11,24): error CS0111: Type 'TypeHelper' already defines a member called 'Inherits' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\NamespaceHelper.cs(7,24): error CS0111: Type 'NamespaceHelper' already defines a member called 'Is' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\NamespaceHelper.cs(9,24): error CS0111: Type 'NamespaceHelper' already defines a member called 'Is' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TextHelpers.cs(5,38): error CS0111: Type 'TextHelpers' already defines a member called 'GetLastToken' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
  Testing.Api -> .\OpenApi\test\Testing.Api\bin\Debug\net6.0\Testing.Api.dll
  ApiBase -> .\OpenApi\experiments\ApiBase\bin\Debug\net6.0\ApiBase.dll
  WebApi.TestApp -> .\OpenApi\test\WebApi.TestApp\bin\Debug\net6.0\WebApi.TestApp.dll
  Testing.WebApi -> .\OpenApi\test\Testing.WebApi\bin\Debug\net6.0\Testing.WebApi.dll
  Web.TestApp -> .\OpenApi\test\Web.TestApp\bin\Debug\net6.0\Web.TestApp.dll
  Bundle.Tests -> .\OpenApi\test\Bundle.Tests\bin\Debug\net6.0\Bundle.Tests.dll
  Generator.Tests -> .\OpenApi\test\Generator.Tests\bin\Debug\net6.0\RendleLabs.OpenApi.Generator.Tests.dll
  Testing -> .\OpenApi\src\Testing\bin\Debug\net6.0\RendleLabs.OpenApi.Testing.dll
  Testing.Xunit -> .\OpenApi\src\Testing.Xunit\bin\Debug\net6.0\Testing.Xunit.dll
  Testing.Tests -> .\OpenApi\test\Testing.Tests\bin\Debug\net6.0\RendleLabs.OpenApi.Testing.Tests.dll

Build FAILED.

.\OpenApi\src\Analyzer\ControllerAnalyzer.cs(38,23): error CS0101: The namespace 'Analyzer' already contains a definition for 'AttributeHelper' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TypeHelper.cs(7,23): error CS0101: The namespace 'Analyzer' already contains a definition for 'TypeHelper' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\NamespaceHelper.cs(5,23): error CS0101: The namespace 'Analyzer' already contains a definition for 'NamespaceHelper' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TextHelpers.cs(3,21): error CS0101: The namespace 'Analyzer' already contains a definition for 'TextHelpers' [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\ControllerAnalyzer.cs(40,24): error CS0111: Type 'AttributeHelper' already defines a member called 'HasHttpMethodAttribute' with the same parameter types [.\OpenApi\src\Analyzer\Analyz
er.csproj]
.\OpenApi\src\Analyzer\ControllerAnalyzer.cs(50,25): error CS0111: Type 'AttributeHelper' already defines a member called 'IsHttpMethodAttribute' with the same parameter types [.\OpenApi\src\Analyzer\Analyze
r.csproj]
.\OpenApi\src\Analyzer\TypeHelper.cs(9,24): error CS0111: Type 'TypeHelper' already defines a member called 'Inherits' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TypeHelper.cs(11,24): error CS0111: Type 'TypeHelper' already defines a member called 'Inherits' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\NamespaceHelper.cs(7,24): error CS0111: Type 'NamespaceHelper' already defines a member called 'Is' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\NamespaceHelper.cs(9,24): error CS0111: Type 'NamespaceHelper' already defines a member called 'Is' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
.\OpenApi\src\Analyzer\TextHelpers.cs(5,38): error CS0111: Type 'TextHelpers' already defines a member called 'GetLastToken' with the same parameter types [.\OpenApi\src\Analyzer\Analyzer.csproj]
    0 Warning(s)
    11 Error(s)