Error building hello_usb on Windows 10

[AtaKhiabani]

I have taken the steps in chapter 9.2 of "Getting started with raspberry pi Pico" and set up the Pico for my Windows machine and I can build the "blink" example successfully. But I am getting the following error when I build the hello_usb example:

AR10B2~1.EXE: error: CMakeFiles/hello_usb.dir/hello_usb.c.obj: No such file or directory NMAKE : fatal error U1077: 'C:\PROGRA~2\GNUARM~1\102020~1\bin\AR10B2~1.EXE' : return code '0x1' Stop. NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30037\bin\HostX86\x86\nmake.exe"' : return code '0x2' Stop. NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30037\bin\HostX86\x86\nmake.exe"' : return code '0x2' Stop. NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30037\bin\HostX86\x86\nmake.exe"' : return code '0x2' Stop.

I have run the following command inside pico-sdk directory but still I can't build that example: git submodule update --init

I have also added this path: C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30037\bin\HostX86\x86 to my "path" variable both for user variables and system variables, but still I get error building hello_usb example. Any help is greatly appreciated!

[lurch]

Duplicate of #128 ?

[khowling]

+1. Running nmake on the pico examples on Windows 10 as per PDF instructions. the blink.c.obj file actually exists in pico-examples\build\blink\CMakeFiles\blink.dir. So I'm sure its a directory thing on Windows 10 - See the 2 odd characters at the start of the path in the error!

Any help will be greatly received :)

[lurch]

Hmmm, searching for those strange characters finds https://superuser.com/questions/601282/%CC%81-is-not-recognized-as-an-internal-or-external-command/804342 which sounds like a plausible explanation. However I'm not sure which part of the build-process is (incorrectly) creating files with the UTF8 BOM, nor why this is only affecting a very small minority of users :confused: @kilograham is more familiar with the build-process so he might have some ideas?

@AtaKhiabani and @khowling What version of CMake do you have installed? Do you have non-ASCII characters somewhere in your directory path?

[khowling]

Followed the Windows10 install instructions today, so: cmake version 3.21.0, downloaded today cmake-3.21.0-windows-x86_64.msi directory path (nothing appears odd): C:\Users\khowling\pico\pico-examples git version 2.21.0.windows.1 Visual Studio Build Tools 2019 - 16.10.4 git clone -b master https://github.com/raspberrypi/pico-examples.git ran today (wiped and re-cloned twice to try to resolve) .

[AtaKhiabani]

@khowling and @lurch, I tried different versions of CMake and also different versions of Windows 10 SDK but couldn't fix this issue. Finally, after one week of trying to run the examples, I found out about this really helpful tutorial that uses MinGW instead of nmake: https://shawnhymel.com/2096/how-to-set-up-raspberry-pi-pico-c-c-toolchain-on-windows-with-vs-code/ Using this I am able to build and run all the pico examples. I suggest using this and not wasting your time with nmake.

[khowling]

I was using WSL2, the toolchain works great on WSL2 . Only issue is access to the USB device, the picotool etc doesn't work on WSL2, so moved to Windows to try to get a more automated workflow

[kilograham]

https://www.raspberrypi.org/forums/viewtopic.php?f=145&t=316310 apparently cmake 3.20.X does fix this issue

[xenois]

Windows has some weird long path restrictions which cannot be disabled even with regedit. I just created a project for using Docker to build everything (debugging included). Saves you from configuring everything new in different OS.

[CrackedP0t]

I had this problem with CMake 3.22.1, but downgrading to CMake 3.20.5 as was suggested in this thread fixed it.

[paramthiru]

Thank you @CrackedP0t! After facing the same issue with CMake 3.22.1, downgrading to CMake 3.20.5 worked.

[raimuucka]

https://www.raspberrypi.org/forums/viewtopic.php?f=145&t=316310 apparently cmake 3.20.X does fix this issue

Worked for me too. Uninstalled my current CMake (3.22.1). Installed 3.20.5 and deleted build content, then repeated cmake -G "NMake Makefiles" .. and then nmake

[insane-kane]

This appears to be a bug with CMake 3.21+ for Windows, not with the Raspberry Pi Pico SDK or files. I was able to replicate this issue with an entirely new project, still using the pico SDK albeit.

[build] [100%] Linking CXX executable blink-1.elf [build] AR10B2~1.EXE: error: CMakeFiles/blink-1.dir/blink-1.c.obj: No such file or directory [build] NMAKE : fatal error U1077: 'C:\PROGRA~2\GNUARM~1\102021~1.10\bin\AR10B2~1.EXE' : return code '0x1' [build] Stop.

[insane-kane]

This appears to be a bug with CMake 3.21+ for Windows, not with the Raspberry Pi Pico SDK or files. I was able to replicate this issue with an entirely new project, still using the pico SDK albeit.

[build] [100%] Linking CXX executable blink-1.elf [build] AR10B2~1.EXE: error: CMakeFiles/blink-1.dir/blink-1.c.obj: No such file or directory [build] NMAKE : fatal error U1077: 'C:\PROGRA~2\GNUARM~1\102021~1.10\bin\AR10B2~1.EXE' : return code '0x1' [build] Stop.

Downgrading to CMake version 3.20.6 corrected the issue.

[nhorlock]

Using CMake 3.24.0 (from cmake.org) also appears to fix this.

[Talha-Babar]

i am using CMake 3.29.3 and still facing the issue in building the pio examples

The error is:

CMake Error at CMakeLists.txt:18 (pico_add_extra_outputs): Unknown CMake command "pico_add_extra_outputs".

-- Configuring incomplete, errors occurred!

[lurch]

@Talha-Babar You might want to try using https://github.com/raspberrypi/pico-setup-windows ?