Npm AI平台笔记本无法启动终端

在TF2.3映像中启动终端时出现以下错误

Launcher error
a is not a constructor

问题:

wit widget 1.7.1alpha3

解决方法：

将SSH插入实例并禁用扩展：

jupyter labextension list
Config option `kernel_spec_manager_class` not recognized by `ListLabExtensionsApp`.
JupyterLab v1.2.16
Known labextensions:
   app dir: /opt/conda/share/jupyter/lab
        @jupyter-widgets/jupyterlab-manager v1.1.0  enabled  OK
        @jupyterlab/celltags v0.2.0  enabled  OK
        @jupyterlab/git v0.11.0  enabled  OK
        jupyterlab-plotly v1.5.1  enabled  OK
        jupyterlab_gcpscheduler v1.0.4  enabled  OK
        nbdime-jupyterlab v1.0.0  enabled  OK
        plotlywidget v1.5.1  enabled  OK
        wit-widget v1.7.1-alpha.3 enabled OK

jupyter labextension disable wit-widget 
# Ignore `Config option `kernel_spec_manager_class` not recognized by `DisableLabExtensionsApp` message.

jupyter labextension list (Verify wit-widget is disabled)
service jupyterlab restart

问题:

wit widget 1.7.1alpha3

解决方法：

将SSH插入实例并禁用扩展：

jupyter labextension list
Config option `kernel_spec_manager_class` not recognized by `ListLabExtensionsApp`.
JupyterLab v1.2.16
Known labextensions:
   app dir: /opt/conda/share/jupyter/lab
        @jupyter-widgets/jupyterlab-manager v1.1.0  enabled  OK
        @jupyterlab/celltags v0.2.0  enabled  OK
        @jupyterlab/git v0.11.0  enabled  OK
        jupyterlab-plotly v1.5.1  enabled  OK
        jupyterlab_gcpscheduler v1.0.4  enabled  OK
        nbdime-jupyterlab v1.0.0  enabled  OK
        plotlywidget v1.5.1  enabled  OK
        wit-widget v1.7.1-alpha.3 enabled OK

jupyter labextension disable wit-widget 
# Ignore `Config option `kernel_spec_manager_class` not recognized by `DisableLabExtensionsApp` message.

jupyter labextension list (Verify wit-widget is disabled)
service jupyterlab restart

---

感谢您发现问题并发布解决方案。wit widget 1.7.1-alpha.3并不打算作为wit widget的最新包公开，因为它存在问题。wit widget最新标签已恢复为1.7.0。

感谢您找到问题并发布解决方案。wit widget 1.7.1-alpha.3并不打算作为wit widget的最新包公开，因为它存在问题。wit widget最新标记已恢复为1.7.0