Jupyter Lab無法開啟終端視窗的解決方法

2023-02-10 06:01:09

錯誤描述

本地Anaconda使用pip install jupyterlab後使用jupyter-lab開啟視窗建立Terminal出現錯誤Launcher Error、Unhandled error、Dismiss

解決方案

通過查詢Anaconda視窗資訊發現報錯如下：

Traceback (most recent call last):
File "e:anaconda3envspytorch1.6.0libsite-packagestornadoweb.py", line 1702, in _execute
result = method(*self.path_args, **self.path_kwargs)
File "e:anaconda3envspytorch1.6.0libsite-packagestornadoweb.py", line 3173, in wrapper
return method(self, *args, **kwargs)
File "e:anaconda3envspytorch1.6.0libsite-packagesjupyter_serverterminalapi_handlers.py", line 26, in post
name, _ = self.terminal_manager.new_named_terminal(**data)
File "e:anaconda3envspytorch1.6.0libsite-packagesterminadomanagement.py", line 319, in new_named_terminal
term = self.new_terminal(**kwargs)
File "e:anaconda3envspytorch1.6.0libsite-packagesterminadomanagement.py", line 171, in new_terminal
pty = PtyProcessUnicode.spawn(argv, env=env, cwd=options.get('cwd', None))
File "e:anaconda3envspytorch1.6.0libsite-packageswinptyptyprocess.py", line 89, in spawn
'executable: %s.' % command
FileNotFoundError: The command was not found or was not executable: powershell.exe.

可以發現報錯的原因是JupyterLab在建立Ternimal時無法定位到PowerShell。為此，我通過CMD啟用PowerShell仍然失敗，如下所示：

因此懷疑時是環境變數中缺少`PowerShell`路徑，因此我找到`PowerShell`路徑並新增至環境變數，如下所示

完成後在CMD中輸入PowerShell即可進入PowerShell模式

此時開啟Anaconda啟動JupyterLab，即可正常啟動Terminal，如下所示：

總結

如果在Win10平臺使用JupyterLab無法正常啟動Terminal且報錯為FileNotFoundError: The command was not found or was not executable: powershell.exe.，只需要在環境變數中新增PowerShell路徑

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Jupyter Lab無法開啟終端視窗的解決方法

目錄

錯誤描述

解決方案

總結

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