TEST: Clean project file directly

Author: daviwil

.build.ps1

@@ -8,6 +8,9 @@ param(
 # AppVeyor causes trouble with the build platform, fix that
 # by setting the environment variable that MSBuild picks up
 $script:BuildPlatform = "Any CPU"
+if ($env:APPVEYOR -ne $null) {
+    # $env:Platform = "AnyCPU"
+}
 
 task SetupDotNet -Before Clean, Build, BuildHost, Test, TestPowerShellApi {
 
@@ -62,7 +65,8 @@ task SetupDotNet -Before Clean, Build, BuildHost, Test, TestPowerShellApi {
 }
 
 task Clean {
-    exec { & dotnet clean .\PowerShellEditorServices.sln -- /p:Platform="$script:BuildPlatform" }
+    # exec { & dotnet clean .\PowerShellEditorServices.sln -- /p:Platform="$script:BuildPlatform" }
+    exec { & dotnet clean -v:diag .\src\PowerShellEditorServices\PowerShellEditorServices.csproj }
 }
 
 function BuildForPowerShellVersion($version) {