Xampp error??

Error: MySQL shutdown unexpectedly.
19:49:41  [code=sql]  This may be due to a blocked port, missing dependencies, 
19:49:41  [code=sql]  improper privileges, a crash, or a shutdown by another method.
19:49:41  [code=sql]  Press the Logs button to view error logs and check
19:49:41  [code=sql]  the Windows Event Viewer for more clues
19:49:41  [code=sql]  If you need more help, copy and post this
19:49:41  [code=sql]  entire log window on the forums