Xamarin Android应用程序在启动后立即关闭

Question

我在Visual Studio中使用Xamarin.

我创建了一个样板android应用程序(点击我),我尝试了以下内容:

场景1:

1. 切换到发布模式

2. 右键单击项目>导出Android包(.apk)

3. 侧载生成.apk到我的手机上

4. 应用程序启动没有问题

情景2

1. 切换到发布模式

2. 工具> Android>发布Android应用程序

3. 创建私钥商店后签名APK

4. 侧面负载生成.apk(在发布文件夹中)到手机上

5. 应用程序启动后立即关闭(没有错误消息,没有)

这可能是什么问题？

签署包裹后是否还需要做其他事情？

在这两种情况下,输出apk的大小相同,为5227kb

更新:

我已尝试在Android模拟器上运行相同的东西.结果相同.该应用程序在模拟器上以调试模式运行正常.一旦我将其切换到发布,我得到"不幸的是,App1已停止"

这是错误日志http://pastebin.com/4j1Vwtgf

更新2:

这是我在发布模式下部署时的日志:

1>Starting deploy 5" KitKat (4.4) XXHDPI Phone ...
1>Deploying 5" KitKat (4.4) XXHDPI Phone ...
1>Build started.
1>C:\Program Files (x86)\MSBuild\14.0\bin\csc.exe /noconfig /nowarn:1701,1702,2008 /nostdlib+ /errorreport:prompt /warn:4 /define:TRACE;__XAMARIN_ANDROID_v1_0__;__MOBILE__;__ANDROID__;__ANDROID_1__;__ANDROID_2__;__ANDROID_3__;__ANDROID_4__;__ANDROID_5__;__ANDROID_6__;__ANDROID_7__;__ANDROID_8__;__ANDROID_9__;__ANDROID_10__;__ANDROID_11__;__ANDROID_12__;__ANDROID_13__;__ANDROID_14__;__ANDROID_15__;__ANDROID_16__;__ANDROID_17__;__ANDROID_18__;__ANDROID_19__;__ANDROID_20__;__ANDROID_21__;__ANDROID_22__;__ANDROID_23__ /errorendlocation /preferreduilang:en-US /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v6.0\Mono.Android.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.Linq.dll" /debug:pdbonly /filealign:512 /optimize+ /out:obj\Release\App1.dll /ruleset:"C:\Program Files (x86)\Microsoft Visual Studio 14.0\Team Tools\Static Analysis Tools\\Rule Sets\MinimumRecommendedRules.ruleset" /target:library /utf8output MainActivity.cs Resources\Resource.Designer.cs Properties\AssemblyInfo.cs "C:\Users\a\AppData\Local\Temp\MonoAndroid,Version=v6.0.AssemblyAttributes.cs" obj\Release\\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs obj\Release\\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs obj\Release\\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
1>App1 -> C:\Users\a\Documents\Visual Studio 2015\Projects\App1\App1\bin\Release\App1.dll
1>  Processing: obj\Release\res\layout\main.xml
1>  Processing: obj\Release\res\values\strings.xml
1>C:\Program Files (x86)\Java\jdk1.7.0_55\\bin\keytool.exe -list -alias androiddebugkey -storepass android -keypass android -keystore "C:\Users\al\AppData\Local\Xamarin\Mono for Android\debug.keystore" 
1>C:\Program Files (x86)\Java\jdk1.7.0_55\\bin\jarsigner.exe -keystore "C:\Users\a\AppData\Local\Xamarin\Mono for Android\debug.keystore" -storepass android -keypass android -digestalg SHA1 -sigalg md5withRSA -signedjar bin\Release\\App1.App1-Signed-Unaligned.apk "C:\Users\a\Documents\Visual Studio 2015\Projects\App1\App1\obj\Release\android\bin\App1.App1.apk" androiddebugkey 
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 (2046-02-20) or after any future revocation date.
1>C:\Program Files (x86)\Android\android-sdk\build-tools\23.0.1\zipalign.exe 4 "C:\Users\a\Documents\Visual Studio 2015\Projects\App1\App1\bin\Release\App1.App1-Signed-Unaligned.apk" "bin\Release\\App1.App1-Signed.apk" 
1>Build succeeded.
1>Deploy successfully on 5" KitKat (4.4) XXHDPI Phone

以下是调试模式的构建日志

2>Starting deploy 5" KitKat (4.4) XXHDPI Phone ...
2>Deploying 5" KitKat (4.4) XXHDPI Phone ...
2>Build started.
2>C:\Program Files (x86)\Java\jdk1.7.0_55\\bin\keytool.exe -list -alias androiddebugkey -storepass android -keypass android -keystore "C:\Users\a\AppData\Local\Xamarin\Mono for Android\debug.keystore" 
2>C:\Program Files (x86)\Java\jdk1.7.0_55\\bin\jarsigner.exe -keystore "C:\Users\a\AppData\Local\Xamarin\Mono for Android\debug.keystore" -storepass android -keypass android -digestalg SHA1 -sigalg md5withRSA -signedjar bin\Debug\\App1.App1-Signed-Unaligned.apk "C:\Users\a\Documents\Visual Studio 2015\Projects\App1\App1\obj\Debug\android\bin\App1.App1.apk" androiddebugkey 
2>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 (2046-02-20) or after any future revocation date.
2>C:\Program Files (x86)\Android\android-sdk\build-tools\23.0.1\zipalign.exe 4 "C:\Users\a\Documents\Visual Studio 2015\Projects\App1\App1\bin\Debug\App1.App1-Signed-Unaligned.apk" "bin\Debug\\App1.App1-Signed.apk" 
2>Build succeeded.
2>Deploy successfully on 5" KitKat (4.4) XXHDPI Phone

Answer 1

在您的 Pastebin 日志中，您似乎在这里有一个特定的错误。看来libmonodroid.so这里没有加载。

03-25 00:40:18.531 E/AndroidRuntime( 1407): java.lang.UnsatisfiedLinkError: 
Couldn't load monodroid from loader 
dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/App1.App1- 
1.apk"],nativeLibraryDirectories=[/data/app-lib/App1.App1-1, /system/lib]]]: 
findLibrary returned null

此问题通常意味着由于某种原因 libmonodroid.so 未安装。

我会推荐以下物品：

1. 用于adb uninstall <package name>完全删除任何旧的 App1.App1 应用程序。
2. 清理/重建您的项目（另请务必手动删除bin/obj解决方案中的文件夹。

如果这仍然是一个问题。确保文件 -> 新 Android 项目将调试并正确安装为发布 .apk。adb logcat遵循步骤 1-2 后，您还应该收集您的尝试。