最近在做windML。只是刚入门，所以用windriver自带的ugldemo.c文件来演示。建立了一个downloadable project，然后加入ugldemo.c。编译和build的时候都没有问题，但是download的时候就出现了unresolved symbols encountered错误，具体错误如下：

****************************************************************************************************

Errors while downloading E:/VxWorks/work/Project0/SIMNTgnu/ugldemo.o:
_uglInputMsgGet
_uglCursorMove
_uglBackgroundColorSet
_uglForegroundColorSet
_uglFontSet
_uglTextSizeGet
_uglTextDraw
_uglOSTaskDelay
_uglLineStyleSet
_uglLineWidthSet
_uglRectangle
_uglCursorBitmapDestroy
_uglCursorDeinit
_uglTransBitmapDestroy
_uglBitmapDestroy
_uglMemFree
_uglMonoBitmapDestroy
_uglRegionDestroy
_uglFontDestroy
_uglGcDestroy
_uglDeinitialize
_uglOSTaskCreate
_uglInitialize
_uglRegistryFind
_uglGcCreate
_uglFontDriverInfo
_uglFontFindString
_uglFontCreate
_uglInfo
_uglMemAlloc
_uglColorAlloc
_uglRegionCreate
_uglVersionMinor
_uglVersionMajor
_uglRegionRectInclude
_uglRegionRectExclude
_uglClipRegionSet
_uglMonoBitmapCreate
_uglBitmapCreate
_uglTransBitmapCreate
_uglCursorInit
_uglCursorBitmapCreate
_uglCursorImageSet
_uglCursorOn
_uglBitmapWrite
_uglBatchStart
_uglBitmapBlt
_uglBatchEnd
_uglLine
_uglFillPatternSet
_uglPolygon
_uglEllipse
_uglBitmapStretchBlt

***************************************************************************­***********
哪位大侠请指教一下，为什么啊，怎么解决呢？焦头烂额中。不胜感激。

-------------------------------------------------------------------------------------------------------------------------------------------------------------------