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node.js - JupyterLab plotly 扩展错误：找不到模块 jupyter\lab\staging\node_modules\ejs\postinstall.js

问题描述

我正在尝试使用以下方法为 Plotly 安装 JupyterLab 渲染器支持：

jupyter labextension install jupyterlab-plotly@4.10.0

我得到

RuntimeError: npm 依赖安装失败

日志文件包含以下内容：

[LabBuildApp] Building in C:\Users\<user>\anaconda3\share\jupyter\lab
[LabBuildApp] Node v14.11.0

[LabBuildApp] Yarn configuration loaded.
[LabBuildApp] Building jupyterlab assets (build:prod:minimize)
[LabBuildApp] > node C:\Users\<user>\anaconda3\lib\site-packages\jupyterlab\staging\yarn.js install --non-interactive
[LabBuildApp] yarn install v1.21.1
[1/5] Validating package.json...
[2/5] Resolving packages...
[3/5] Fetching packages...
info fsevents@2.1.3: The platform "win32" is incompatible with this module.
info "fsevents@2.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
info fsevents@1.2.13: The platform "win32" is incompatible with this module.
info "fsevents@1.2.13" is an optional dependency and failed compatibility check. Excluding it from installation.
[4/5] Linking dependencies...
warning " > @lumino/coreutils@1.5.0" has unmet peer dependency "crypto@1.0.1".
[5/5] Building fresh packages...
error C:\Users\<user>\anaconda3\share\jupyter\lab\staging\node_modules\ejs: Command failed.
Exit code: 1
Command: node ./postinstall.js
Arguments: 
Directory: C:\Users\<user>\anaconda3\share\jupyter\lab\staging\node_modules\ejs
Output:
internal/modules/cjs/loader.js:896
  throw err;
  ^

Error: Cannot find module 'C:\Users\<user>\anaconda3\share\jupyter\lab\staging\node_modules\ejs\postinstall.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:893:15)
    at Function.Module._load (internal/modules/cjs/loader.js:743:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

[LabBuildApp] npm dependencies failed to install
[LabBuildApp] Traceback (most recent call last):

[LabBuildApp]   File "C:\Users\<user>\anaconda3\lib\site-packages\jupyterlab\debuglog.py", line 47, in debug_logging
    yield

[LabBuildApp]   File "C:\Users\<user>\anaconda3\lib\site-packages\jupyterlab\labapp.py", line 138, in start
    raise e

[LabBuildApp]   File "C:\Users\<user>\anaconda3\lib\site-packages\jupyterlab\labapp.py", line 134, in start
    build(name=self.name, version=self.version,

[LabBuildApp]   File "C:\Users\<user>\anaconda3\lib\site-packages\jupyterlab\commands.py", line 459, in build
    return handler.build(name=name, version=version, static_url=static_url,

[LabBuildApp]   File "C:\Users\<user>\anaconda3\lib\site-packages\jupyterlab\commands.py", line 652, in build
    raise RuntimeError(msg)

[LabBuildApp] RuntimeError: npm dependencies failed to install

[LabBuildApp] Exiting application: JupyterLab

当我打开 JupyterLab 时，我被要求做一个

jupyter lab build

在我尝试之后，我在日志文件中得到了同样的错误。

我正在使用 Windows10、node.js 14.11.0（使用 conda 安装）、JupyterLab 2.1.5

请注意，我已经尝试过：

两者都没有运气。

标签： node.jsnpmplotlyejsjupyter-lab

解决方案

可能是防火墙的问题。

尝试在 的配置中设置代理npm，甚至strict-ssl关闭：

npm config set strict-ssl false

和

npm config set proxy http://host:port

为了http

或者

npm config set https-proxy https://host:port

为了https

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