Answers

• mattward GBMember Xamurai

  March 2016

  Does your project file use a custom build step or custom MSBuild targets file or have you defined the path to mandroid as a property somewhere? It looks like something is trying to run MonoAndroid on the Mac but is using the path to it as though it was on Windows:

  C:\Program Files (x86)\MSBuild\Xamarin\Android/mandroid
  

  I would try verbosity:diagnostic to see if any properties are defined and also look at the project file to see what is imported.

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• AidenStrydom USMember ✭

  April 2016

  Hi Matt, thanks for the response. No - no custom build step. And the csproj was copied along all the other files from the windows box to the mac. But i noticed the same reference to mandroid as a windows path. Today's attempt is to condition the build with a osx path

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• AidenStrydom USMember ✭

  April 2016 edited April 2016

  So xbuild attempts to execute CheckProjectItems in Xamarin.Android.Common.Targets: the output of the diagnostic build is:

  Target _CheckProjectItems:
      Task "CheckProjectItems"
          Using task CheckProjectItems from Xamarin.Android.Tasks.CheckProjectItems, Xamarin.Android.Build.Tasks, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
          CheckProjectItems Task
            NativeLibraries:
            JavaLibraries:
            JavaSourceFiles:
  /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets: error : Error executing task CheckProjectItems: ApplicationName='C:\Program Files (x86)\MSBuild\Xamarin\Android/mandroid', CommandLine='-d', CurrentDirectory='/', Native error= Cannot find the specified file
          Error executing task CheckProjectItems: System.ComponentModel.Win32Exception: ApplicationName='C:\Program Files (x86)\MSBuild\Xamarin\Android/mandroid', CommandLine='-d', CurrentDirectory='/', Native error= Cannot find the specified file
            at System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process) <0x31d3380 + 0x00e1b> in <filename unknown>:0 
            at System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process) <0x31d31f0 + 0x000a7> in <filename unknown>:0 
            at System.Diagnostics.Process.Start () <0x31d3178 + 0x0004f> in <filename unknown>:0 
            at (wrapper remoting-invoke-with-check) System.Diagnostics.Process:Start ()
            at Xamarin.Android.Tasks.MandroidDaemon.CreateDaemon () <0x31f5150 + 0x003e3> in <filename unknown>:0 
            at Xamarin.Android.Tasks.MandroidDaemon.GetStandardInput_Locked () <0x31f50d0 + 0x0001f> in <filename unknown>:0 
            at Xamarin.Android.Tasks.MandroidDaemon.SendCommand (Microsoft.Build.Utilities.Task task, System.String[] commands, System.Action`1 response) <0x31f4930 + 0x00307> in <filename unknown>:0 
            at Xamarin.Android.Tasks.MandroidDaemon.GetEdition (Microsoft.Build.Utilities.Task task) <0x31f47d8 + 0x000eb> in <filename unknown>:0 
            at MSBuildExtensions.GetLicenseEdition (Microsoft.Build.Utilities.Task task) <0x31f47a8 + 0x00013> in <filename unknown>:0 
            at Xamarin.Android.Tasks.CheckProjectItems.Execute () <0x31f4378 + 0x001df> in <filename unknown>:0 
            at Microsoft.Build.BuildEngine.TaskEngine.Execute () <0x31ccf28 + 0x00018> in <filename unknown>:0 
            at Microsoft.Build.BuildEngine.BuildTask.Execute () <0x310d830 + 0x00257> in <filename unknown>:0 
          Done building target "_CheckProjectItems" in project "/Users/build/Desktop/SBG.NBOL.Core/SBG.NBOL.Tablet.Droid/SBG.NBOL.Tablet.Droid.csproj" ("/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets"); "Build" depends on it.
          Done building target "Build" in project "/Users/build/Desktop/SBG.NBOL.Core/SBG.NBOL.Tablet.Droid/SBG.NBOL.Tablet.Droid.csproj" ("/Library/Frameworks/Mono.framework/Versions/4.2.3/lib/mono/4.5/Microsoft.Common.targets").
  

  The excerpt from Xamarin.Android.Common.targers

  <!-- project item consistency check -->
  <Target Name="_CheckProjectItems"
      DependsOnTargets="_SetLatestTargetFrameworkVersion">
    <CheckProjectItems
        IsApplication="$(AndroidApplication)"
        JavaSourceFiles="@(AndroidJavaSource)"
        JavaLibraries="@(AndroidJavaLibrary)"
        NativeLibraries="@(AndroidNativeLibrary)"
        EmbeddedNativeLibraries="@(EmbeddedNativeLibrary)" />
  </Target>
  

  And the associative error (taken from above) for JavaSourceFiles is:

  JavaSourceFiles:
      /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets: error : Error executing task CheckProjectItems: ApplicationName='C:\Program Files (x86)\MSBuild\Xamarin\Android/mandroid', CommandLine='-d', CurrentDirectory='/', Native error= Cannot find the specified file
  

  Busy reinstalling Xamarin on the Mac.
  Here's to hoping.

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• mattward GBMember Xamurai

  April 2016

  If that does not work I would file a bug on bugzilla with the full diagnostic output and the details about what version of Xamarin.Android you have installed.

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