Question about local project path

Hi,

im currently working on Gitlab CI with multi runner on Windows 10 x64 to build C# projects ... and im facing some issues with local git project paths.

I added "Nuget" into my git repo

ProjectPath\.Nuget\nuget.exe

My gitlab ci yml looks like

stages:
  - build

job:
  stage: build
  script:
  - echo "Restoring NuGet Packages..."
  - '".Nuget\nuget.exe" restore "Project.sln"'
  - ''
  - echo "Release build..."
  - '"C:\Program Files (x86)\MSBuild\14.0\Bin\msbuild.exe" /consoleloggerparameters:ErrorsOnly /maxcpucount /target:rebuild /nologo /property:Configuration=Release;Platform=x64 /verbosity:Diagnostic "Project.sln"'
  tags: 
  except:
  - tags

I always get

$ echo "Restoring NuGet Packages..."
"Restoring NuGet Packages..."
$ ".Nuget\nuget.exe" restore "Project.sln"
The System can not find the path.

$ echo "Release build..."
"Release build..."
$ "C:\Program Files (x86)\MSBuild\14.0\Bin\msbuild.exe" /consoleloggerparameters:ErrorsOnly /maxcpucount /target:rebuild /nologo /property:Configuration=Release;Platform=x64 /verbosity:Diagnostic "Project.sln"
MSBUILD : error MSB1009: The project file does not exist.
Control: Project.sln

So how can i access the local project path on "Project.sln" & ".Nuget\nuget.exe" to get it work? Any ideas? :)