Vs2019 WinForm clr20r3 error

stay win10 Write a winform The program , To 2008 Up operation , newspaper CLR20R3 Error of .

Installed .net Environmental Science , Still can't solve , Later, it was found in the system log that it was a control error , Not registered .

It seems that we should form the habit of reading logs .

 

See this brother's blog for details ,https://blog.csdn.net/menghuangxiao/article/details/54915149