我认为这是Windows 7/8/8.1系统上的.Net 4.7更新的又一个问题.尝试在同一网页)

I think this is yet another problem with .Net 4.7 update on Windows 7/8/8.1 systems. Try installing the updates in this web page. If that doesn't help, try uninstalling .Net Framework 4.7 (instructions to uninstall and reinstall also in the same web page)