C# Android打包失败，NullReferenceException

知道为什么会这样吗

如果我只是运行一个构建，它将成功完成，但是设备的打包中出现错误

在Android上使用Mono

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我还更新了完整构建输出->

如果您使用免费版本的MonoDroid，您将无法从内部打包、签名并直接部署到设备，而我猜最后一行包含错误源。 否则，我发现构建引擎无法找到Newtonsoft.Json.Silverlight。 如果应用程序在模拟器上运行，这是对第一个问题性质的确认

      C:\Program Files (x86)\MSBuild\Novell\mandroid.exe -v --nosign --sdk-dir="C:\android-sdk-windows" --builddir="C:\dotnetdev\MapDroid\obj\Debug\android" --framework-dir="C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2" --framework-dir="C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0" -S="C:\dotnetdev\MapDroid\obj\Debug\res" --package="MapDroid.MapDroid"   --nolink --abi="armeabi" --java-sdk-dir="C:\Program Files (x86)\Java\jdk1.6.0_26" --debug --manifest-template="C:\dotnetdev\MapDroid\Properties\AndroidManifest.xml" --sdk-platform="8" "C:\dotnetdev\MapDroid\bin\Debug\MapDroid.dll" "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\Mono.Android.dll" "C:\dotnetdev\MonoMap\bin\Debug\MonoMap.dll" "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll" "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll" "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll" "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll" "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.Linq.dll" 
monodroid : error 1: System.NullReferenceException: Object reference not set to an instance of an object [C:\dotnetdev\MapDroid\MapDroid.csproj]
    at MonoDroid.Utils.ProcessRocks+<ReadStandardOutput>c__Iterator5.MoveNext () [0x00000] in <filename unknown>:0 
    at Monodroid.Toolbox.InvokeCommand (IEnumerable`1 commandLine) [0x00000] in <filename unknown>:0 
    at Monodroid.Toolbox.InvokeAapt (System.String packageName) [0x00000] in <filename unknown>:0 
    at Monodroid.Droidinator.CreatePackagedResources (System.Collections.Generic.List`1 javaTypes) [0x00000] in <filename unknown>:0 
    at Monodroid.Droidinator.CreateApk () [0x00000] in <filename unknown>:0 
    at Monodroid.MainClass.Main (System.String[] argv) [0x00000] in <filename unknown>:0 
Done Building Project "C:\dotnetdev\MapDroid\MapDroid.csproj" (SignAndroidPackage target(s)) -- FAILED.

error 1: System.NullReferenceException: Object reference not set to an instance of an object [C:\dotnetdev\MapDroid\MapDroid.csproj]