Hi, I am getting below error after I updated the edkrepo. Can you help me in this. Below is the log. Fd File Name:FSP (C:\MTL\mtl_wp\Build\MeteorLakeFspPkg\DEBUG_VS2015x86\FV\FSP.fd) Generate Region at Offset 0x0 Region Size = 0x84000 Region Name = FV Generating FSP-S FV #### build.py... : error C0DE: Tools code failure Please send email to devel@edk2.groups.io for help, attaching following call stack trace! Traceback (most recent call last): File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\GenFds.py", line 371, in GenFdsApi GenFds.GenFd('', FdfParserObj, BuildWorkSpace, ArchList) File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\GenFds.py", line 510, in GenFd FdObj.GenFd() File "C:\MTL\mtl_wp\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 "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\Region.py", line 134, in AddToBuffer FvObj.AddToBuffer(FvBuffer, FvBaseAddress, BlockSize, BlockNum, ErasePolarity, Flag=Flag) File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\Fv.py", line 127, in AddToBuffer FileName = FfsFile.GenFfs(MacroDict, FvParentAddr=BaseAddress, IsMakefile=Flag, FvName=self.UiFvName) File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\FfsFileStatement.py", line 156, in GenFfs sectList, align = section.GenSection(OutputDir, self.NameGuid, SecIndex, self.KeyStringList, None, Dict) File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\CompressSection.py", line 67, in GenSection ReturnSectList, AlignValue = Sect.GenSection(OutputPath, ModuleName, SecIndex, KeyStringList, FfsInf, Dict, IsMakefile=IsMakefile) File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\UiSection.py", line 70, in GenSection GenFdsGlobalVariable.GenerateSection(OutputFile, None, 'EFI_SECTION_USER_INTERFACE', Ui=NameString, IsMakefile=IsMakefile) File "C:\MTL\mtl_wp\Edk2\BaseTools\Source\Python\GenFds\GenFdsGlobalVariable.py", line 466, in GenerateSection SectionData.fromstring(Ui.encode("utf_16_le")) AttributeError: 'array.array' object has no attribute 'fromstring' build.py... : error 7000: Failed to execute command - Failed - Build end time: 15:11:14, Dec.21 2020 Build total time: 00:01:08 Regards, Sandeep