jQuery is not defined

[willy-jaygur]

Hi,
I want to run the project on the tomcat Server, then I npm run build the project.
When the project finished build, I copy all the file in the 'dist' to tomcat 's webapps.
But when I open the website, it only showed the background color and run bugs.
Uncaught ReferenceError: jQuery is not defined.

Can you help me to solve the problem?
Thanks!