你好 zzimo
>> System.Runtime.Remoting.RemotingException[5656] 设计器进程意外终止!
很抱歉这个错误信息太普通了,我们无法得知具体错误在哪里。请首先确保Visual Studio和Net Framework正确安装。
我猜测你可能遇到的是下面的状态

解决办法是到对应的Designer下面的ShadowCache 文件夹里面删掉所有内容。地址类似 C:\Users\{user}\AppData\Local\Microsoft\VisualStudio\(your version)\Designer\ShadowCache
更多请查看这个链接
https://connect.microsoft.com/VisualStudio/feedback/details/797072/designer-crashes-in-visual-studio-2013-with-system-runtime-remoting-remotingexception
希望能帮到你。
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