After the installation of Xamarin, when compiling Android projects, you will find that a long time progress is not moving, when you cancel the compilation, you will find the error, is because the Android project in the first compile to go to the Google site on the next Andorid SDK package, the wall is not connected, Just stuck there, the solution is to go home to some mirror site (such as: Http://mirrors.opencas.cn/android/) Next, such as: Android_m2repository_r29.zip, and then extract to any directory, Use Mklink to establish a link to the c:\users\{username}\appdata\local\xamarin\android.support.v4\23.3.0.0 directory, named content, such as life today:
CD android.support.animated.vector.drawable\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.design\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.v4\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.v7.appcompat\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.v7.cardview\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD Android.support.v7.mediarouter\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.v7.recyclerview\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.vector.drawable\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. CD android.support.animated.vector.drawable\23.3.0.0rmdirContentmklink/J Content: \.. \ANDROID_M2REPOSITORY_R29CD. \.. \
This goes back to VS and compiles, OK.
Visual Studio Xamarin compiles an error resolution for Android projects