Red message when trying to compile and run programs

When I compile and run my programs, this red message appears. Although it doesn't affect my projects, I don't like seeing any red as I think it's an error. The message is as follows:

"objc[5353]: Class JavaLaunchHelper is implemented in both /. . . and /. . . One of the two will be used. Which one is undefined."

If anyone knows how to remove this message that would be much appreciated! Thanks!