Eclipse project red exclamation mark solution, eclipse

Eclipse project red exclamation mark solution, eclipse

Situation: The project has a red exclamation mark.

 

Solution:

Right-click the target project and choose Build Path> configure build path

Click configure build path of the eclipse project. In the displayed window, find the Libraries tab. You can see that some jar packages are in red, the jar package cannot find the corresponding file, this eclipse project is preceded by a red exclamation mark, a red exclamation mark before the eclipse project, a red exclamation mark before the eclipse project, and a red exclamation mark before the eclipse project, it may be because of a project imported from outside or because some files have been deleted, which leads to red exclamation marks, red exclamation marks, and red exclamation marks. Find the jar packages not found in these eclipse projects and modify them.

The cause of my error is that the correct JDK is not selected. Click Edit where the error occurs and select the current JDK.