Clean: Deleting intermediary and output files.
Clean: Deleted file "E:PICProjectpic.mcs".
Clean: Done.
Executing: "e:picpiccBINPICC.EXE" -C -E"pic.cce" "pic.c" -O"pic.obj" -Zg9 -O -ASMLIST -Q -MPLAB -16F877A

This compiler will expire in 20 days
Compiler operating in demo mode.
Some command line options are disabled and compilation is delayed.
Register this compiler to enable these options.

Executing: "e:picpiccBINPICC.EXE" -E"pic.lde" "E:PICProjectpic.obj" -M"pic.map" -O"pic.cof" -O"pic.hex" -Q -MPLAB -16F877A

This compiler will expire in 20 days
Compiler operating in demo mode.
Some command line options are disabled and compilation is delayed.
Register this compiler to enable these options.

BUILD FAILED: Wed May 07 18:23:59 2014
为什么会出现这种情况，有什么解决办法吗？ 此帖出自小平头技术问答