gci **\*.sln -recurse -Exclude Master.sln  | foreach { nuget restore $_;msbuild  $_ /t:Rebuild /p:platform="any cpu" /p:Configuration="Debug" /p:OutDir=$("$(PWD)\Output\" + $_.BaseName)}
gci **\*.sln -recurse -Exclude Master.sln  | foreach { msbuild $_ /t:Rebuild /p:platform="any cpu" /p:Configuration="Debug" /p:OutDir=$("$(PWD)\Output\" + $_.BaseName)}

Remove call to nuget restore in build script
Remove call to nuget restore in build script