How to convert vs2013 to VS2010 without reporting that this project is incompatible with the current version of visual studio
2. Open each project file “project name. Csproj” with notepad and replace the first oneCode of the targetframeworkversion child node of the node:
The results are as follows:
PS: This article will be revised from the original text, in order to strengthen the memory!
The original text is from: https://blog.csdn.net/CCmonitor/article/details/75817734