Reasons why myeclipse cannot remove jar packages and solutions (1)

Cause: Your project references this package. You can delete the jar package after referencing the package in the project.

Solution:

1,
Right-click your project --> properties --> JAVA build path --> libraries, find the package you want to delete, and click Remove on the right to delete the reference.
2,
Delete the reference and delete the package under lib before publishing.
3. After doing so, you can basically do it. In this process, pay attention to refresh your project. This method is generally acceptable.