I have looked everywhere on the internet and tried everything the forums say to do and nothing works. This error keeps coming up. I have tried running my java project (not for android) even the drop down run as button doesn't work because it says "none applicable".

Best Answer

Eclipse needs to see a main method in one of your projects' source files in order to determine which kind of project it is so it can offer the proper run options

public static void main(String[] args)

Without that method signature (or with a malformed version of that method signature), the run as menu item will not present any run options.