在尝试修复 Visual Studio 2015中缺失MVC模板 时，我在Win10上运行了VS 2015的“修复”程序。但是当修复完成后，我遇到了以下错误：
Microsoft Azure Storage Connected Service : Package failed.
Android SDK Setup (API Level 19 and 21) : The following package(s) were not downloaded: addon-google_apis-google-19 addon-google_apis_x86-google-19 android-19 android-21 android-22 build-tools-19.1.0 build-tools-21.1.2 build-tools-22.0.1 extra-android-m2repository extra-android-support platform-tools sys-img-armeabi-v7a-android-19 sys-img-x86-android-19 . Please check your internet connection and try again.
Android SDK Setup (API Level 22) : The following package(s) were not downloaded: addon-google_apis-google-19 addon-google_apis_x86-google-19 android-19 android-21 android-22 build-tools-19.1.0 build-tools-21.1.2 build-tools-22.0.1 extra-android-m2repository extra-android-support platform-tools sys-img-armeabi-v7a-android-19 sys-img-x86-android-19 . Please check your internet connection and try again.
GitHub Extension for Visual Studio : A VSIX extension with a matching Identifier is already installed to this product.
有没有什么解决方法？请不要建议重新安装，这需要很长时间，并且根据以前使用VS安装的经验，我可能会遇到相同的错误。
我在VS 2015上再次运行了修复程序，这迫使我安装了最新的更新。现在只剩下以下错误：
Android SDK Setup (API Level 23) : The following package(s) were not downloaded: build-tools-23.0.1 android-23 . Please check your internet connection and try again.
我该如何解决这个问题？
无法下载下列软件包：addon-google_apis_x86-google-19。 - Kraang Prime