What should I do if sourceinsight in Linux Ubuntu fails to be opened?

Analysis todayCodeSourceinsight was suddenly closed, and I was wondering, trying to open it again, but it was always a failure. A dialog box popped up saying that sourceinsight encountered a serious problem and needed to be closed. I was depressed, I tried it for dozens of times and then went online to solve the problem. I finally saw a sentence in a forum:

After uninstallation, delete the source insight directory under % home and reinstall the directory.

In fact, you only need to delete all files under % home/soutce Insight/settings and re-run source insight. As a result, I tried it quickly. OK is valid. In order to prevent this problem from happening again in the future, I forgot how to solve it and wrote this blog. At the same time, I could help others.