Hello, I obtained the following error when trying to build a BIOS image. Traceback (most recent call last): File "/workarea/Edk2/BaseTools/Source/Python/GenFds/GenFds.py", line 371, in GenFdsApi GenFds.GenFd('', FdfParserObj, BuildWorkSpace, ArchList) File "/workarea/Edk2/BaseTools/Source/Python/GenFds/GenFds.py", line 510, in GenFd FdObj.GenFd() File "/workarea/Edk2/BaseTools/Source/Python/GenFds/Fd.py", line 131, in GenFd RegionObj.AddToBuffer (FdBuffer, self.BaseAddress, self.BlockSizeList, self.ErasePolarity, GenFdsGlobalVariable.ImageBinDict, self.DefineVarDict, Flag=Flag) File "/workarea/Edk2/BaseTools/Source/Python/GenFds/Region.py", line 134, in AddToBuffer FvObj.AddToBuffer(FvBuffer, FvBaseAddress, BlockSize, BlockNum, ErasePolarity, Flag=Flag) File "/workarea/Edk2/BaseTools/Source/Python/GenFds/Fv.py", line 127, in AddToBuffer FileName = FfsFile.GenFfs(MacroDict, FvParentAddr=BaseAddress, IsMakefile=Flag, FvName=self.UiFvName) File "/workarea/Edk2/BaseTools/Source/Python/GenFds/FfsFileStatement.py", line 72, in GenFfs shutil.rmtree(OutputDir) File "/usr/lib/python2.7/shutil.py", line 275, in rmtree onerror(os.remove, fullname, sys.exc_info()) File "/usr/lib/python2.7/shutil.py", line 273, in rmtree os.remove(fullname) OSError: [Errno 13] Permission denied: '/workarea/Intel/Build/EagleStreamFspPkg/DEBUG_GCC5/FV/Ffs/D9093578-08EB-44DF-B9D8-D0C1D3D55D96FSP-S/D9093578-08EB-44DF-B9D8-D0C1D3D55D96SEC1.raw.txt' It instructed me to email you for help. What is the appropriate measure to fix this? Thanks! Stephen Iversen