我已安装 Mplab 版本8.9，我已从此link下载了固件包
但是，当我点击build all时，它会显示以下输出和构建失败：
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Debug build of project `D:\microchip\WFF Generic HID Demo 3\WFF_GenericHID_Demo_3.mcp' started.
Language tool versions: mplink.exe v9.80, mcc18.exe v9.80, mplib.exe v9.80
Preprocessor symbol `__DEBUG' is defined.
Thu May 29 15:44:49 2014
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Make: The target "D:\microchip\WFF Generic HID Demo 3\main.o" is out of date.
Executing: "C:\Program Files (x86)\Microchip\xc8\v1.31\bin\mcc18.exe" -p=18F4550 /i"..\Microchip Solutions v2011-07-14\Microchip\Include" "main.c" -fo="main.o" -D__DEBUG -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
Make: The target "D:\microchip\WFF Generic HID Demo 3\usb_descriptors.o" is out of date.
Executing: "C:\Program Files (x86)\Microchip\xc8\v1.31\bin\mcc18.exe" -p=18F4550 /i"..\Microchip Solutions v2011-07-14\Microchip\Include" "usb_descriptors.c" -fo="usb_descriptors.o" -D__DEBUG -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
usb_descriptors.c:
125: rom struct{BYTE report[28];}hid_rpt01={
(984) type redeclared ^
^ (1098) conflicting declarations for variable "hid_rpt01" (usb_descriptors.c:125)
(908) exit status = 1
(908) exit status = 1
Halting build on first failure as requested.
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Debug build of project `D:\microchip\WFF Generic HID Demo 3\WFF_GenericHID_Demo_3.mcp' failed.
Language tool versions: mplink.exe v9.80, mcc18.exe v9.80, mplib.exe v9.80
Preprocessor symbol `__DEBUG' is defined.
Thu May 29 15:44:51 2014
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BUILD FAILED
我也尝试在link中找到问题，但我找不到它的根本原因。
我开始尝试这个，因为我想为我的项目制作自己的盾牌和pcb，而不是arduino等。
请帮我解决这个问题。