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Unable to Execute langgraph up on Windows WSL2: TypeError: cannot unpack non-iterable NoneType object #9

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opened 2026-02-16 05:17:18 -05:00 by yindo · 2 comments
yindo commented 2026-02-16 05:17:18 -05:00
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Originally created by @Maks-Redka on GitHub (Jun 20, 2024).

Issue Summary:

Attempting to run langgraph up on Windows WSL2 results in the following error:

Traceback (most recent call last):
  File "/home/mex42/work/langgraph-example/.venv/bin/langgraph", line 8, in <module>
    sys.exit(cli())
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/langgraph_cli/cli.py", line 183, in up
    capabilities = langgraph_cli.docker.check_capabilities(runner)
  File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/langgraph_cli/docker.py", line 83, in check_capabilities
    stdout, _ = runner.run(subp_exec("docker", "info", "-f", "json", collect=True))
TypeError: cannot unpack non-iterable NoneType object

Reproduce and issue similar to Issue #20

Originally created by @Maks-Redka on GitHub (Jun 20, 2024). # Issue Summary: Attempting to run langgraph up on Windows WSL2 results in the following error: ``` Traceback (most recent call last): File "/home/mex42/work/langgraph-example/.venv/bin/langgraph", line 8, in <module> sys.exit(cli()) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1157, in __call__ return self.main(*args, **kwargs) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1078, in main rv = self.invoke(ctx) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1688, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 1434, in invoke return ctx.invoke(self.callback, **ctx.params) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/click/core.py", line 783, in invoke return __callback(*args, **kwargs) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/langgraph_cli/cli.py", line 183, in up capabilities = langgraph_cli.docker.check_capabilities(runner) File "/home/mex42/work/langgraph-example/.venv/lib/python3.10/site-packages/langgraph_cli/docker.py", line 83, in check_capabilities stdout, _ = runner.run(subp_exec("docker", "info", "-f", "json", collect=True)) TypeError: cannot unpack non-iterable NoneType object ``` Reproduce and issue similar to [Issue #20](https://github.com/langchain-ai/langgraph-example/issues/20)
yindo commented 2026-02-16 05:17:19 -05:00
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@zhao-cs-debug commented on GitHub (Jun 24, 2024):

pip install langgraph-cli==0.1.35

@zhao-cs-debug commented on GitHub (Jun 24, 2024): pip install langgraph-cli==0.1.35
yindo commented 2026-02-16 05:17:19 -05:00
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@shanumas commented on GitHub (Jun 25, 2024):

@zhao-cs-debug thanks. Why doesn't it work with latest version (0.1.41). But works with 0.1.35. Why ?

@shanumas commented on GitHub (Jun 25, 2024): @zhao-cs-debug thanks. Why doesn't it work with latest version (0.1.41). But works with 0.1.35. Why ?
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Reference: langchain-ai/langgraph-example#9
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