spring boot can not find or can not load the main class io.renren.RenrenApplication
problem appear:
spring boot project had previously been good, there was a problem with the package mvn clean package, and then run out also can not find or can not load the main class io.renren.RenrenApplication in eclipse
Solution:
1. Delete the target folder
Right 2.eclipse execution command, Maven-update project ...
3. and then run it.