I've been having issues running Minecraft 1.7.2 lately. I originally updated to 1.8, but my computer couldn't run it, so I tried going back to 1.7.2. That didn't work, so I reinstalled Minecraft and am now getting this error:
[13:21:17] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3883ms behind, skipping 77 tick(s)
This happens every time I try to load/create a world in Minecraft 1.7.2. I didn't have this issue until 1.8 was released. I've tried searching Google for this, but wasn't able to find any solutions. Any help at all would be appreciated.