Sometimes a lot of red forks appear when you open or import a project in eclipse

The type Java.lang.Object cannot be resolved

Sometimes when you open or import a project in Eclipse, there is a problem with the title: the type Java.lang.Object cannot be resolved. It is indirectly referenced. This article describes the experience of resolving this issue.

Method/Step

1. 1

   The problem is literally: Java.lang.Object is not recognized as a class, please import dependent files. Java.lang.Object is the most basic class in Java. Why can't ecliipse even find this class? The reason is that the JRE path in the compilation path configuration for this project is missing, or does not match.

2. 2

   The solution is: right-click Project->build path->config build Path->add library, select System JRE.

3. 3

   Complete the operation, clean the project, find the problem solved!

Sometimes a lot of red forks appear when you open or import a project in eclipse