android - 无法启动应用程序

Question

我无法让我的应用程序从 Visual Studio 2015/Xamarin 运行 Android 设备。它无法在设备上启动，并显示以下消息:

The application could not be started.
Ensure that the application has been installed to the target device and has a launchable activity (MainLauncher = true).  
Additionally, check Build->Configuration Manager to ensure this project is set to Deploy for this configuration.

所以我将装饰器 [Activity(MainLauncher = true)] 添加到 MainActivity。

我在 Build-> Configuration Manager 中检查了 AnyCPU、Build 和 Deploy。

重新启动，相同的结果，没有在设备上启动并给出相同的消息。

A post on StackOverflow表明之前的应用程序可能尚未完全删除，因此从 adb shell 发出此命令:

adb -s 09103e9 shell pm list packages 

显示设备上的包:

package:com.google.android.ears
package:com.android.launcher
package:com.android.defcontainer
package:com.rovio.popcorn
package:com.nuance.xt9.input
package:com.google.android.exchange
package:com.android.providers.partnerbookmarks
package:com.android.contacts
package:com.google.android.nfcprovision
package:com.android.phone
package:com.android.calculator2
package:com.android.htmlviewer
package:com.google.android.gsf.login
package:com.android.bluetooth
package:com.android.providers.calendar
package:com.google.android.email
package:Mono.Android.Platform.ApiLevel_23
package:com.android.providers.downloads.ui
package:com.mobilerise.mystreetview
package:com.android.documentsui
package:com.android.sharedstoragebackup
package:com.android.vpndialogs
package:com.android.providers.media
package:com.google.android.marvin.talkback
package:jp.co.omronsoft.iwnnime.ml.kbd.white
package:com.android.certinstaller
package:com.google.android.deskclock
package:com.google.android.gms
package:com.google.android.apps.currents
package:com.google.android.setupwizard
package:com.example.android.osmdroidofflinedemo
package:com.android.settings
package:com.meraki.sm
package:com.google.android.street
package:com.hp.android.printservice
package:com.google.android.googlequicksearchbox
package:com.google.android.music
package:com.android.musicvis
package:eu.thedarken.sdm
package:com.android.wallpaper.livepicker
package:com.google.android.inputmethod.latin
package:net.osmand
package:com.android.packageinstaller
package:com.google.android.backuptransport
package:com.google.android.apps.chromecast.app
package:com.google.android.tts
package:com.android.providers.telephony
package:com.android.noisefield
package:com.google.android.apps.maps
package:com.google.android.apps.cloudprint
package:com.funtrigger.appinstaller
package:com.wf.wellsfargomobile
package:com.pandora.android
package:com.android.wallpapercropper
package:com.android.location.fused
package:com.android.backupconfirm
package:com.android.providers.settings
package:jp.co.omronsoft.iwnnime.ml
package:si.formias.keepscreenon
package:com.google.android.apps.docs
package:com.android.providers.downloads
package:com.amazon.mp3
package:com.android.browser.provider
package:com.android.musicfx
package:com.google.android.apps.books
package:com.android.phasebeam
package:com.google.android.videos
package:com.google.android.inputmethod.pinyin
package:com.google.android.gallery3d
package:com.google.android.onetimeinitializer
package:oliver.ehrenmueller.dbadmin
package:com.esri.arcgis.collector
package:com.google.android.partnersetup
package:com.wunderground.android.weather
package:com.adobe.reader
package:com.android.proxyhandler
package:com.android.inputdevices
package:com.andrewshu.android.reddit
package:com.android.wallpaper.holospiral
package:com.google.android.feedback
package:com.google.android.talk
package:com.android.nfc
package:com.google.android.apps.enterprise.dmagent
package:com.android.providers.userdictionary
package:com.google.android.inputmethod.korean
package:com.google.android.configupdater
package:com.android.pacprocessor
package:com.quickoffice.android
package:com.google.android.keep
package:com.android.printspooler
package:android
package:com.android.providers.contacts
package:com.techsmith.apps.fuse
package:com.android.externalstorage
package:com.mictale.gpsessentials
package:com.estrongs.android.taskmanager
package:com.android.dreams.basic
package:com.google.android.apps.plus
package:com.android.vending
package:com.google.android.play.games
package:com.android.systemui
package:com.android.keychain
package:com.google.android.gm
package:com.google.android.tag
package:com.android.wallpaper
package:com.google.android.GoogleCamera
package:com.estrongs.android.pop
package:com.google.android.apps.magazines
package:com.google.android.youtube
package:Mono.Android.DebugRuntime
package:com.google.earth
package:com.google.android.gsf
package:com.android.keyguard
package:com.google.android.calendar
package:com.android.facelock
package:com.android.chrome
package:com.android.shell
package:com.google.android.syncadapters.contacts

这些都不是应用程序。网络上的一些建议是删除Mono 包，所以我用这个命令删除了它们:

adb -s 091930e9 shell pm uninstall -k Mono.Android.Platform.ApiLevel-23
adb -s 091930e9 shell pm uninstall -k Mono.Android.DebugRuntime

但这没有任何效果。从 Visual Studio 启动应用程序时会重新安装。

在 VS MyProject.Native.Droid properties > Android Options > Packaging 中，未选中使用快速部署(仅限 Debug模式)没有影响。

在 VS MyProject.Native.Droid properties > Android Options > Advanced 中，确认已选中 x68。

按照@hvaughn 的建议查看构建输出，有以下警告，这也是错误列表中的警告:

Found conflicts between different versions of the same dependent assembly. 
In Visual Studio, double-click this warning (or select it and press Enter) to fix the conflicts; otherwise, add the following binding redirects to the "runtime" node in the application configuration file:
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
    <dependentAssembly><assemblyIdentity name="System.Net.Http" culture="neutral" publicKeyToken="b03f5f7f11d50a3a" />
    <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" /></dependentAssembly></assemblyBinding> 
    MyProject.Native.Droid          
    One or more dependent assemblies have version conflicts

在错误列表中它还说:

Do you want to fix these conflicts by adding binding redirrect records in the application configuration file?

我单击"is"。然后此警告消失，直到下一次构建并再次出现，因此这没有任何影响。

然后是这个:

:Deployment failed
Mono.AndroidTools.InstallFailedException: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]
   at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName)
   at Mono.AndroidTools.AndroidDevice.<InstallPackage>c__AnonStoreyD.<>m__0(Task`1 t)
   at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
Deployment failed because of an internal error: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]
InternalError
Build succeeded.
Deploy successfully on Google Nexus 7

这发生在 2 台设备上，Google Nexus 7 和三星 SM-T530NU。

代码来自远程 Git 存储库。

根据@Matt 的建议，我创建了一个新的 Hello World 类型的解决方案并将其安装在设备上。

不知道该怎么办，网上针对此错误的建议是删除应用程序，我使用 adb 进行了删除，如上所示。我也对“部署成功...”消息感到困惑，因为它不在设备上。

编辑

解决方案是恢复出厂设置。这告诉我，尽管我采取了各种步骤来删除应用程序/程序包，但它仍然以某种方式存在。

Answer 1

您可以通过单击您的 android 项目找到您的包名称，然后打开属性，然后选择 android list 。找到具有相同软件包名称的旧应用程序，将其删除，一切都应该可以正常工作。

它应该是这样的: