Conemu doesn't work with wsl since windows update

Question

Since I have updated windows, my conemu terminal is giving me the following error each time a session is created:

wslbridge error: failed to start backend process note: backend error output: -v: -c: line 0: unexpected EOF while looking for matching `'' -v: -c: line 1: syntax error: unexpected end of file  ConEmuC: Root process was alive less than 10 sec, ExitCode=0. Press Enter or Esc to close console... 

Has anyone an idea to bring conemu to a wsl terminal? Thank you

Answer 1

A similar error is caused by upgrading WSL from v1 to v2.

If you read through the discussion on this github issue for ConEmu you'll find a variety of instructions that can be distilled into:

Change the command for the task {Bash::bash} to the following:

wsl.exe 

Answer 2

A GitHub user posted this workaround which worked for me:

I've fixed the issue by doing this:

1. Download latest cygwin1-20200531.dll.xz from https://cygwin.com/snapshots/ and unpack the file as cygwin1.dll into ConEmu\wsl\ (replacing the original file there)
2. Download @Biswa96's wslbridge2 from https://github.com/Biswa96/wslbridge2/releases and unpack to the same directory
3. Replacing {WSL::bash} task's Command with:

set "PATH=%ConEmuBaseDirShort%\wsl;%PATH%" & %ConEmuBaseDirShort%\conemu-cyg-64.exe %ConEmuBaseDirShort%\wsl\wslbridge2.exe -cur_console:pm:/mnt -eConEmuBuild -eConEmuPID -eConEmuServerPID -l 

I can now access my Ubuntu under W10 just like before the W10 upgrade. Backscroll and arrows in VIM work as expected.

The key part of step 3 is to replace conemu-cyg-64.exe --wsl with conemu-cyg-64.exe %ConEmuBaseDirShort%\wsl\wslbridge2.exe.

Longer term, it looks like the author of ConEmu is working on switching to the new Windows PTY API, which will eliminate the need for the wslbridge hack (and many others) entirely.