STDERR: tundra: error: Unexpected stdin

Unity Engine
,
1

Hello everyone, I have just upgraded my Mac from Catalina to Monterey and the project that was working perfectly well before, now gives this error;

Internal build system error. Backend exited with code 2.
STDOUT:
Finished compiling graph: 873 nodes, 12441 flattened edges (12441 ToBuild, 0 ToUse), maximum node priority 820
STDERR:
tundra: error: Unexpected stdin

I have tried deleting the Library folder to no avail. My username doesn’t include any unusual characters. I appreciate any ideas that you may have.

Thanks in advance.

2 Likes
2

This solved my issue →

https://github.com/techyworm10/firebase-unity-sdk-editor-python-fix

7 Likes
3

THANKS A LOT !!!

4

I also found a patching solution that only requires you to create a symbolic link on the Mac.

ls -s /usr/local/bin/python3 /usr/local/bin/python

You can enter the command line above in the Terminal on the mac. It will create a symbolic link so that each time you call python, it actually calls python3.

(You should double-check the location of your real python3 by executing which python3 which returns the path to python3.)

You might have to recreate the symbolic link in future updates of Mac OS.

1 Like
5

i think you mean ln -s, but can confirm it worked, ty!

6

You’re a genius my man

7

Had this issue today with firebase installation 9.3.0 on Unity version 2021.3.14f1 on Monterey.

Solved it by:

  • Updating the firebase app package and its dependencies to 10.3.0
  • After updating and starting Unity the error changed to : “Could not find a working python interpreter. Please make sure one of the following is in your PATH: python python3 python3.8 python3.7”
  • Then installed python 3 by downloading it from the python website
  • Restart Unity
  • Build the project → succes
8

ln -s /usr/local/bin/python3 /usr/local/bin/python Fixed the problem! Thank you!