Today I learned about the bootstrap+jquery project import file. Due to some unknown errors, I failed to import the file. I searched a lot of information on the Internet, which troubled me for 1 hour, and suddenly thought of this solution.
As for the normal solution, refer to the common methods for reporting errors in imported files
During this hour, I tried many solutions on the Internet without success, and finally found a solution through my own exploration.
You only need to delete all the out files under the project and restart Tomcat to successfully import the bootstrap and jquery projects. All the files circled in black in the figure are deleted, that is, all the files under the out file are
deleted and the Tomcat will be restarted. Found that the bootstrap+jquery project was successfully introduced!
As for why I have such a situation, it may be because other jsp files have been introduced into the jquery project. There may be some kind of conflict. If you know what is going on, you can comment and teach me!