Mplab c18

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nhờ các anh giúp đỡ lỗi này khi biên dịch c18 mlap IDE 8.91

Debug build of project `C:\Microchip Solutions\Ethernet_67J60_Suky\Ethernet_67J60_Suky. mcp' started.
Language tool versions: mplink.exe v4.48
Preprocessor symbol `__DEBUG' is defined.
Fri Aug 30 11:13:42 2013
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Clean: Deleting intermediary and output files.
Clean: Deleted file "C:\Microchip Solutions\Ethernet_67J60_Suky\Ethernet_67J60_Suky. mcs".
Clean: Done.
Couldn't locate build tool. Check tool locations.
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Debug build of project `C:\Microchip Solutions\Ethernet_67J60_Suky\Ethernet_67J60_Suky. mcp' failed.
Language tool versions: mplink.exe v4.48
Preprocessor symbol `__DEBUG' is defined.
Fri Aug 30 11:13:43 2013
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BUILD FAILED