Apache shutdown unexpectedly.

[amine]

Error: Apache shutdown unexpectedly.
2:17:07 PM [Apache] This may be due to a blocked port, missing dependencies,
2:17:07 PM [Apache] improper privileges, a crash, or a shutdown by another method.
2:17:07 PM [Apache] Press the Logs button to view error logs and check
2:17:07 PM [Apache] the Windows Event Viewer for more clues
2:17:07 PM [Apache] If you need more help, copy and post this
2:17:07 PM [Apache] entire log window on the forums
here is the log window error i got can someone help please

[saeela arshad]

i installed xampp.but now this msg is appearing.Error: Apache shutdown unexpectedly.
9:57:29 AM [Apache] This may be due to a blocked port, missing dependencies,
9:57:29 AM [Apache] improper privileges, a crash, or a shutdown by another method.
9:57:29 AM [Apache] Press the Logs button to view error logs and check
9:57:29 AM [Apache] the Windows Event Viewer for more clues
9:57:29 AM [Apache] If you need more help, copy and post this
9:57:29 AM [Apache] entire log window on the forums
what should i do?

[saeela arshad]

i installed xampp.when i start apache the following msg appears.
the procedure entry point isspace could not be located in the dynamic link library d:\xampp\apache\bin\pcre2-8.dll.
what should i do?
plz help me