Docker build failed

Personne n'a encore pris cette issue.

hellow~，I tried to use the code of the master branch to build the docker image, but it failed. I tried the code of 1.0.0 again and got the same error. Can anyone help me?
OS: Ubuntu 20.04
docker: 24.0.7

terminal logs:
```
45.92 Traceback (most recent call last):
45.92 File "utilities/install.py", line 242, in
45.92 geppetto_branch=args.geppetto_version,
45.92 File "utilities/install.py", line 206, in main
45.92 execute(cmd=['yarn', 'install', '--immutable'], cwd=WEBAPP_DIR)
45.92 File "utilities/install.py", line 38, in execute
45.92 exit_code = subprocess.call(cmd, cwd=cwd, *args, **kwargs)
45.92 File "/opt/conda/lib/python3.7/subprocess.py", line 339, in call
45.92 with Popen(*popenargs, **kwargs) as p:
45.92 File "/opt/conda/lib/python3.7/subprocess.py", line 800, in __init__
45.92 restore_signals, start_new_session)
45.92 File "/opt/conda/lib/python3.7/subprocess.py", line 1551, in _execute_child
45.92 raise child_exception_type(errno_num, err_msg, err_filename)
45.92 FileNotFoundError: [Errno 2] No such file or directory: 'yarn': 'yarn'
------
Dockerfile:50
--------------------
48 | RUN jupyter serverextension enable --py --sys-prefix jupyter_geppetto
49 |
50 | >>> RUN python utilities/install.py ${BUILD_ARGS} --workspace $WORKSPACE_VERSION --no-test
51 |
52 | RUN jupyter labextension disable @jupyterlab/hub-extension
--------------------
ERROR: failed to solve: process "/bin/bash -o pipefail -c python utilities/install.py ${BUILD_ARGS} --workspace $WORKSPACE_VERSION --no-test" did not complete successfully: exit code: 1
```

Commencez par la ligne 50 de Dockerfile et utilities/install.py, en particulier par l’appel à execute à la ligne 38 et l’invocation de yarn install à la ligne 206. Reproduisez le build avec les versions d’Ubuntu et de Docker signalées, déterminez ensuite pourquoi yarn n’est pas disponible et vérifiez que l’image Docker se construit correctement.

Rédigé par le modèle d'indexation à partir du texte de l'issue.