Hello,

Build failed with following call trace

build.py...
INFO -  : error C0DE: Unknown fatal error when processing [c:\bea\dfci\mu_tiano_platforms\Common\PRM\PrmPkg\Library\DxePrmModuleDiscoveryLib\DxePrmModuleDiscoveryLib.inf [X64, VS2017, DEBUG]]
INFO -
INFO - (Please send email to devel@edk2.groups.io for help, attaching following call stack trace!)
INFO -
INFO - (Python 3.9.0 on win32) Traceback (most recent call last):
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\build\build.py", line 2635, in Main
INFO -     MyBuild.Launch()
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\build\build.py", line 2430, in Launch
INFO -     self._MultiThreadBuildPlatform()
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\build\build.py", line 2238, in _MultiThreadBuildPlatform
INFO -     Wa, self.BuildModules = self.PerformAutoGen(BuildTarget,ToolChain)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\build\build.py", line 2112, in PerformAutoGen
INFO -     CmdListDict = self._GenFfsCmd(Wa.ArchList)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\build\build.py", line 2009, in _GenFfsCmd
INFO -     GenFfsDict = GenFds.GenFfsMakefile('', GlobalData.gFdfParser, self, ArchList, GlobalData)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\GenFds.py", line 541, in GenFfsMakefile
INFO -     FdObj.GenFd(Flag=True)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\Fd.py", line 131, in GenFd
INFO -     RegionObj.AddToBuffer (FdBuffer, self.BaseAddress, self.BlockSizeList, self.ErasePolarity, GenFdsGlobalVariable.ImageBinDict, self.DefineVarDict, Flag=Flag)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\Region.py", line 134, in AddToBuffer
INFO -     FvObj.AddToBuffer(FvBuffer, FvBaseAddress, BlockSize, BlockNum, ErasePolarity, Flag=Flag)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\Fv.py", line 127, in AddToBuffer
INFO -     FileName = FfsFile.GenFfs(MacroDict, FvParentAddr=BaseAddress, IsMakefile=Flag, FvName=self.UiFvName)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\FfsInfStatement.py", line 518, in GenFfs
INFO -     InputSectList, InputSectAlignments = self.__GenComplexFileSection__(Rule, FvChildAddr, FvParentAddr, IsMakefile=IsMakefile)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\FfsInfStatement.py", line 969, in __GenComplexFileSection__
INFO -     SectList, Align = Sect.GenSection(self.OutputPath, self.ModuleGuid, SecIndex, self.KeyStringList, self, IsMakefile = IsMakefile)
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\EfiSection.py", line 218, in GenSection
INFO -     GenFdsGlobalVariable.GenerateSection(OutputFile, [], 'EFI_SECTION_USER_INTERFACE',
INFO -   File "C:\BEA\DFCI\mu_tiano_platforms\MU_BASECORE\BaseTools\Source\Python\GenFds\GenFdsGlobalVariable.py", line 466, in GenerateSection
INFO -     SectionData.fromstring(Ui.encode("utf_16_le"))
INFO - AttributeError: 'array.array' object has no attribute 'fromstring'

Kind Regards,
Shivanshi