c++ - Crossed folders in eclipse luna -

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I have just installed Eclipse Luna and some of the folders appear in my project explorer, and I do not know it How to remove it and even what it means.

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It seems that the engine And the gameplay folders are also being repeated. What is happening?

Thanks

What I did was:

Project Properties -> C / C ++ General -> Paths and Symbols

There I added the directories to the folder and on the tab added to the source location I clicked:

Edit the filter -> Remove

I think how did you add folders to this project (via eclipses , A source folder or external form A.)


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