我有一个非常简单的Xamarin.Android项目，昨晚我关机了，今天我又回来了，无法运行我的代码：
尝试运行项目时：
Build Failed: Xamarin.Android does not support running the previous version. Please ensure your solution builds before running or debugging it.
然而，我没有错误，当我重建解决方案时：
1>------ Rebuild All started: Project: App1, Configuration: Release Any CPU ------
1> App1 -> C:\Users\Doug\source\repos\App1\App1\bin\Release\App1.dll
1>CREATEMULTIDEXMAINDEXCLASSLIST : warning : can't write resource [META-INF/MANIFEST.MF] (Duplicate zip entry [android-support-multidex.jar:META-INF/MANIFEST.MF])
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========
有什么想法吗？它可能与多索引警告有关，但我甚至不使用multi-dex ....