相关疑难解决方法(0)

在将Android.Support Library v7 AppCompat更新到21.0.3版本后,我遇到了以下错误:

1>C:\Program Files (x86)\MSBuild\Xamarin\Androi\Xamarin.Android.Common.targets(236,2): error XA5207: Please install package: 'Android Support Library' available in SDK installer. Java library file C:\Users...\AppData\Local\Xamarin\Android.Support.v4\21.0.3\embedded\classes.jar doesn't exist.

1>C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(236,2): error XA5207: Please install package: 'Android Support Library' available in SDK installer. Java library file C:\Users...\AppData\Local\Xamarin\Android.Support.v4\21.0.3\embedded\libs/internal_impl-21.0.3.jar doesn't exist.

1>C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(236,2): error XA5206: Please install package: 'Android Support Library' available in SDK installer. Android resource directory C:\Users...\AppData\Local\Xamarin\Android.Support.v4\21.0.3\embedded./ doesn't exist.

我尝试从SDK管理器中删除Android支持库21.0.3并再次下载.

有类似的问题:Android支持库和媒体路由器.jar文件无法找到,但我没有在我的项目中使用地图.我该如何解决？

我正在使用Visual Studio 2013,使用API​​ 21编译(Xamarin.Android v5.0支持),最小terget API 16,Terget API 21

我最近将我的项目上传到Git,并使用了自动生成的Xamarin/Windows/MacOS/VisualStudio .gitignore文件.我在iOS上做了很多工作和测试,但现在我回到android但是在构建Project.Droid版本时,我收到以下错误:

Error   11  Please install package: 'Android Support Library' available in SDK installer. Android resource directory C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\embedded\./ doesn't exist.    MyProject.Droid
Error   5   Please install package: 'Android Support Library' available in SDK installer. Java library file C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\embedded\classes.jar doesn't exist.    MyProject.Droid
Error   8   Please install package: 'Android Support Library' available in SDK installer. Java library file C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\embedded\libs/internal_impl-21.0.3.jar doesn't exist.  MyProject.Droid
Error   4   Reason: C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\android_m2repository_r10.zip is not a valid zip file   MyProject.Droid
Error   7   Reason: C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\android_m2repository_r10.zip is not a valid zip file …