Hello Nate,Yes. The error is same, relating to CPUTARGET.I have followed the steps exactly you shared.Regards,Akber---- On Fri, 22 Apr 2022 23:05:08 +0530 Desimone, Nathaniel L wrote ---- @font-face {font-family: "Cambria Math"} @font-face {font-family: Calibri} @font-face {font-family: Verdana} div.zm_3439600677699188033_parse_-8282203189211570726 p.MsoNormal, div.zm_3439600677699188033_parse_-8282203189211570726 li.MsoNormal, div.zm_3439600677699188033_parse_-8282203189211570726 div.MsoNormal { margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif } div.zm_3439600677699188033_parse_-8282203189211570726 a:link, div.zm_3439600677699188033_parse_-8282203189211570726 span.x_1281710661MsoHyperlink { color: blue; text-decoration: underline } div.zm_3439600677699188033_parse_-8282203189211570726 span.x_1281710661font { } div.zm_3439600677699188033_parse_-8282203189211570726 span.x_1281710661size { } div.zm_3439600677699188033_parse_-8282203189211570726 span.x_1281710661EmailStyle25 { font-family: Calibri, sans-serif; color: windowtext } div.zm_3439600677699188033_parse_-8282203189211570726 *.x_1281710661MsoChpDefault { font-size: 10pt } Hi Akber,   Is the error in the build log the same as before? The build script should resolve the issue of CPUTARGET being undefined.   Thanks, Nate   From: Akber Basha J Sent: Tuesday, April 19, 2022 11:36 PM To: Desimone, Nathaniel L Cc: devel@edk2.groups.io Subject: Re: [edk2-devel] EDK2 WilsonCityRVP BIOS Build Error   Hello Nate,   Thank you for your response.   Build is still getting failed after trying the steps you have mentioned.   Regards, Akber       ---- On Mon, 11 Apr 2022 23:14:14 +0530 Desimone, Nathaniel L wrote ----   Hi Akber,   It looks like you are trying to build without using the MinPlatform build script. Please try building using the following:   cd edk2 source edksetup.sh cd ../edk2-platforms/Platform/Intel python ./build_bios.py -p WilsonCityRvp   Thanks, Nate   From: devel@edk2.groups.io on behalf of Akber Basha J via groups.io Date: Monday, April 11, 2022 at 4:38 AM To: devel Cc: Sadafale, Mangesh Subject: [edk2-devel] EDK2 WilsonCityRVP BIOS Build Error Team,   We are getting build errors while trying to build BIOS for Intel WilsonCityRVP under WhitleyOpenBoardPkg platform.   Toolchains used: GCC: 5 and 7 (getting same error for both GCC5 and GCC7) IASL: 20211217 OS: Ubuntu-20.04-LTS Source: Latest EDK2 "master" source is being used for compilation.   All pre-build tests has been run successfully.   With the above-mentioned toolchains, we could successfully able to build BIOS images for TigerlakeURVP platform. But for WhitleyOpenBoardPkg, errors are thrown.   Error screenshot has been attached with this mail for reference.     Any help would be appreciated.   Regards, Akber