Today, when I demonstrate one of my program to my colleague，Error reported, it is really,really weired!. I just ran it last week and never touch it again, how can it break down? After a little nap,I rechecked the program, and found that one line of the code is commented! And I realized it is the Mesh that overwrite my code with the old version file from server. Mesh can synchronize my folder but many times will also overwrite my new files if I update local files without running mesh to moniter the folder.