年假过来，开电脑，居然电脑也病了，打开Visual Studio，显示类似下面的错误：
我的错误是"The 'ProviderPackage' package did not load correctly."，明明它说关掉VS下次启动这个错误会消失，可是重启并没什么球用。
网上一下就找到了，对应我的环境的解决方案如下：
# How Can I Fix the Microsoft Visual Studio Error: “Package Did Not Load Correctly”?
I started to see this on a fresh Windows and Visual Studio 2013 Ultimate with Update 2 installation (although others have also reported it on Updates 3 and 4, as well as the Professional version).
To resolve the problem, close all Visual Studio instances, then delete all files in the following folder:
Visual Studio 2013%localappdata%\Microsoft\VisualStudio\12.0\ComponentModelCacheIt worked fine for me. Thanks to this article.
Visual Studio 2015%localappdata%\Microsoft\VisualStudio\14.0\ComponentModelCacheVisual Studio 2017
%localappdata%\Microsoft\VisualStudio\15.0_xxxx\ComponentModelCache
简单翻译一下：
关掉Visual Studio，删除对应版本对应的文件夹即可（删除前最好先备份）
| VS版本 | 应该删除的文件夹 |
|---|---|
| Visual Studio 2013 | %localappdata%\Microsoft\VisualStudio\12.0\ComponentModelCache |
| Visual Studio 2015 | %localappdata%\Microsoft\VisualStudio\14.0\ComponentModelCache |
| Visual Studio 2017 | %localappdata%\Microsoft\VisualStudio\15.0_xxxx\ComponentModelCache |
说明一下，这里面的%localappdata%文件夹就是你的Windows系统的用户数据所在的文件夹下的本地应用数据文件夹，像我的是在C:\Users\MyUserName\AppData\Local。
达叔傻乐(darwin.zuo@163.com)
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