Xamarin Android项目内置Xamarin Studio内置VS2015但部署失败

Question

我一直有一个问题一遍又一遍。如果我在Xamarin Studio中创建一个项目，构建它并运行它，则一切正常。

然后我打开VS2015中的同一个项目，我可以构建它，并且不显示任何错误。但是，如果我尝试将其运行（或部署到设备或模拟器），则会失败。

这就是信息的Visual Studio 2015年的节目在输出窗口

1>No -tsa or -tsacert is provided and this jar is not timestamped. Without a timestamp, users may not be able to validate this jar after the signer certificate's expiration date (2046-09-30) or after any future revocation date. 
1>C:\Program Files (x86)\Android\android-sdk\build-tools\23.0.0\zipalign.exe 4 "C:\Users\me\Desktop\work\xamarin\LocationTrackingService\LocationTrackingService\bin\Debug\com.user.learning.locationtrackingservice-Signed-Unaligned.apk" "bin\Debug\\com.user.learning.locationtrackingservice-Signed.apk" 
1>C:\Program Files (x86)\Android\android-sdk\platform-tools\adb.exe -s ENU7N16723000122 devices 
1>C:\Program Files (x86)\Android\android-sdk\platform-tools\adb.exe -s ENU7N16723000122 shell getprop ro.build.version.sdk 
1>C:\Program Files (x86)\Android\android-sdk\platform-tools\adb.exe -s ENU7N16723000122 shell getprop ro.product.cpu.abilist64 
1>C:\Program Files (x86)\Android\android-sdk\platform-tools\adb.exe -s ENU7N16723000122 shell pm dump com.user.learning.locationtrackingservice 
1>The "InstallPackageAssemblies" task failed unexpectedly. 
1>System.AggregateException: One or more errors occurred. ---> Xamarin.AndroidTools.AndroidDeploymentException: InternalError ---> Mono.AndroidTools.InstallFailedException: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package com.usere.learning.locationtrackingservice signatures do not match the previously installed version; ignoring!] 
1> at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName) 
1> at Mono.AndroidTools.AndroidDevice.<>c__DisplayClass91_0.<InstallPackage>b__0(Task`1 t) 
1> at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke() 
1> at System.Threading.Tasks.Task.Execute() 
1> --- End of inner exception stack trace --- 
1> at Xamarin.AndroidTools.AndroidDeploySession.<RunLoggedAsync>d__99.MoveNext() 
1>--- End of stack trace from previous location where exception was thrown --- 
1> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) 
1> at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 
1> at Xamarin.AndroidTools.AndroidDeploySession.<StartAsync>d__98.MoveNext() 
1> --- End of inner exception stack trace --- 
1> at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) 
1> at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) 
1> at System.Threading.Tasks.Task.Wait() 
1> at Xamarin.Android.Tasks.InstallPackageAssemblies.Execute() 
1> at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() 
1> at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext() 
1>---> (Inner Exception #0) Xamarin.AndroidTools.AndroidDeploymentException: InternalError ---> Mono.AndroidTools.InstallFailedException: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package com.user.learning.locationtrackingservice signatures do not match the previously installed version; ignoring!] 
1> at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName) 
1> at Mono.AndroidTools.AndroidDevice.<>c__DisplayClass91_0.<InstallPackage>b__0(Task`1 t) 
1> at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke() 
1> at System.Threading.Tasks.Task.Execute() 
1> --- End of inner exception stack trace --- 
1> at Xamarin.AndroidTools.AndroidDeploySession.<RunLoggedAsync>d__99.MoveNext() 
1>--- End of stack trace from previous location where exception was thrown --- 
1> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) 
1> at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 
1> at Xamarin.AndroidTools.AndroidDeploySession.<StartAsync>d__98.MoveNext()<--- 
1> 
1>Build FAILED. 
1> 
========== Build: 0 succeeded, 0 failed, 1 up-to-date, 0 skipped ========== 
========== Deploy: 0 succeeded, 1 failed, 0 skipped ========== 

我不知道为什么会出现这种情况，如何解决这个问题。我的理解是，在Xamarin Studio中创建的项目可以在Visual Studio中打开并运行，反之亦然。

Answer 1

我想我找到了问题所在。运行adb设备列出了我的设备和仿真器的数量，其中没有一个我正在运行......奇怪。

发行

adb kill-server 
adb start-server 
adb devices 

删除了所有的模拟器，现在只有我的设备被列为运行

接下来，我发出

adb uninstall "com.usere.learning.locationtrackingservice" 

这确信，我的应用程序的一个版本是肯定会被卸载，并且不会在设备上留下一些卸载的文件。

之后，我能够部署和运行。