目录
- 错误描述
- 解决方案
- 总结
错误描述
本地Anaconda
使用pip install jupyterlab
后使用jupyter-lab
打开窗口创建Terminal
出现错误Launcher Error
、Unhandled error
、Dismiss
解决方案
通过查询Anaconda
窗口信息发现报错如下:
Traceback (most recent call last):
File "e:\anaconda3\envs\pytorch1.6.0\lib\site-packageshttp://www.devze.com\tornado\web.py", line 1702, in _execute &nb开发者_JAVAsp; result = method(*self.path_args, **self.path_kwargs) File "e:\anaconda3\envs\pytorch1.6.0\lib\site-packages\tornado\web.py", line 3173, in wrapper return method(self, *args, **kwargs) File "e:\anaconda3\envs\pytorch1.6.0\lib\site-packages\jupytphper_server\terminal\api_handlers.py", line 26, in post name, _ = self.terminal_manager.new_named_terminal(**data) File "e:\anaconda3\envs\pytorch1.6.0\lib\site-packages\terminado\management.py", line 319, in new_named_terminal term = self.new_terminal(**kwargs) File "e:\anaconda3\envs\pytorch1.6.0\lib\site-packages\terminado\management.androidpy", line 171, in new_terminal pty = PtyProcessUnicode.spawn(argv, env=env, cwd=options.get('cwd', None)) File "e:\anaconda3\envs\pytorch1.6.0\lib\site-packages\winpty\ptyprocess.py", line 89, in spawn 'executable: %s.' % command FileNotFoundError: The command was not found or was not executable: PowerShell.exe.
可以发现报错的原因是JupyterLab
在创建Ternimal
时无法定位到PowerShell
。为此,我通过CMD
启用PowerShell
仍然失败,如下所示:
因此怀疑时是环境变量中缺少`PowerShell`路径,因此我找到`PowerShell`路径并添加至php环境变量,如下所示
完成后在CMD
中输入PowerShell
即可进入PowerShell
模式
此时打开Anaconda
启动JupyterLab
,即可正常启动Terminal
,如下所示:
总结
如果在Win10
平台使用JupyterLab
无法正常启动Terminal
且报错为FileNotFoundError: The command was not found or was not executable: powershell.exe.
,只需要在编程客栈环境变量中添加PowerShell
路径
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