Unrecognized Flag '-Yu' in 'p2'

[Tembocs]

Trying to build from Windows 10 x64 using Visual Studio 2019 and got his error message.
unrecognized flag '-Yu' in 'p2'. This is from the current master branch. How do I resolve this? Is it something to do with UTF-8? What is the workaround then? Can't be applied to the whole repo? I have tried to search related issues without success with proposed solutions.

[zadjii-msft]

Could you give some more context on that error text? I've never seen it before.

[bjohnson-fsi]

Getting the same error when trying to build for x64 using Visual Studio 2019.

Full Error List:

[mmdanggg2]

I'm getting this too, trying to build x64 Release, Debug builds fine...

[kopwei]

The same. Debug x64 build passed but Release x64 failed with same issue.

1>------ Build started: Project: TerminalConnection, Configuration: Release x64 ------
1>LINK : fatal error C1007: unrecognized flag '-Yu' in 'p2'
1>LINK : fatal error LNK1257: code generation failed
1>Done building project "TerminalConnection.vcxproj" -- FAILED.
2>------ Build started: Project: TerminalControl, Configuration: Release x64 ------
2>LINK : fatal error C1007: unrecognized flag '-Yu' in 'p2'
2>LINK : fatal error LNK1257: code generation failed
2>Done building project "TerminalControl.vcxproj" -- FAILED.

[baget]

Could you give some more context on that error text? I've never seen it before.

I also saw this.

• Clone the repro,
• Update the submodules
• Opened with VS2019
• upgrade the solution
• build the solution.

This is the Error that I get

27>------ Build started: Project: Host.unittest, Configuration: Release x64 ------
25>readData.cpp
27>precomp.cpp
25>readDataDirect.cpp
25>readDataRaw.cpp
25>registry.cpp
15>Nihilist.vcxproj -> D:\MyProjects\GitHub\terminal\\bin\x64\Release\Nihilist.exe
24>LINK : fatal error C1007: unrecognized flag '-Yu' in 'p2'
24>LINK : fatal error LNK1257: code generation failed

[braindef]

i have the same Error...

[HimiSaber]

Right click solution -->retarget solution，change to latest

[boldcronie]

I had the same error. VS2019/tools v142, and every build failed with at least two modules returning the "Unrecognized flag -Yu in p2" error. Re-targeted after clone, and individually re-targeted the UWP projects that didn't move from 141 to 142 during the initial re-target. Still got the errors during every build.

Tried HimiSaber's solution -- after another failed build, right-clicked the OpenConsole.sln and clicked Re-target solution. That finished, so I built again. No errors! Launching the WindowsTerminal.exe still didn't work (would appear, then disappear after a few seconds), but I deployed anyway. Only took a few seconds, as the solution had been properly built. Checked Start Menu, and Windows Terminal (Dev Build) was there and working!

Thank you HimiSaber! I almost didn't try it, as I'd already re-targeted several times.

[Tembocs]

@HimiSaber and @boldcronie, thank you so much this works. I have successful built WindowsTerminal and deploy. Its working and fast.

[DHowett-MSFT]

This will be fixed by #1012.

[ghost]

I still have this error.

[oliver-ni]

@NycuRO did you try @HimiSaber's solution? Worked for me

[ghost]

i fixed. but when i use ubuntuu profile i've got gray screen only.

[devinvisible]

I had a similar issue in a completely unrelated project. Going into my project properties and setting Linker -> General -> Show Progress to /VERBOSE gave me a clue -- it showed a library of mine that it was searching for. A stack overflow comment suggested this was caused by this library being built with a different version of visual studio. I rebuilt both using the same version of visual studio (being mindful to build the appropriate architecture & release) and this error went away.