我已经通过conda安装了nodejs，没有问题：
(tf2) C:\WINDOWS\system32>conda install -c anaconda nodejs
Collecting package metadata (current_repodata.json): done
Solving environment: done
## Package Plan ##
environment location: C:\Users\Alienware\Anaconda3\envs\tf2
added / updated specs:
- nodejs
The following packages will be downloaded:
package | build
---------------------------|-----------------
nodejs-10.13.0 | 0 13.2 MB anaconda
------------------------------------------------------------
Total: 13.2 MB
The following packages will be SUPERSEDED by a higher-priority channel:
nodejs conda-forge::nodejs-13.0.0-1 --> anaconda::nodejs-10.13.0-0
Proceed ([y]/n)? y
Downloading and Extracting Packages
nodejs-10.13.0 | 13.2 MB | ############################################################################ | 100%
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
然后我运行(tf2) C:\WINDOWS\system32>jupyter labextension install @jupyterlab/toc并返回异常：
Building jupyterlab assets (build:prod:minimize)
An error occured.
RuntimeError: JupyterLab failed to build
See the log file for details: C:\Users\Alienware\AppData\Local\Temp\jupyterlab-debug-41ynux3v.log
日志文件具有以下内容：
Yarn configuration loaded.
Node v10.13.0
> C:\Users\Alienware\Anaconda3\envs\tf2\npm.CMD pack @jupyterlab/toc
npm notice
npm notice package: @jupyterlab/toc@1.0.1
npm notice === Tarball Contents ===
npm notice 2.2kB package.json
npm notice 1.5kB LICENSE
npm notice 1.2kB README.md
npm notice 314B lib/extension.d.ts
npm notice 3.4kB lib/extension.js
npm notice 111B lib/generators/index.d.ts
npm notice 403B lib/generators/index.js
npm notice 474B lib/generators/latexgenerator.d.ts
npm notice 2.4kB lib/generators/latexgenerator.js
npm notice 1.1kB lib/generators/markdowndocgenerator/index.d.ts
npm notice 7.9kB lib/generators/markdowndocgenerator/index.js
npm notice 248B lib/generators/markdowndocgenerator/itemrenderer.d.ts
npm notice 1.0kB lib/generators/markdowndocgenerator/itemrenderer.js
npm notice 549B lib/generators/markdowndocgenerator/optionsmanager.d.ts
npm notice 930B lib/generators/markdowndocgenerator/optionsmanager.js
npm notice 1.2kB lib/generators/markdowndocgenerator/toolbargenerator.d.ts
npm notice 1.7kB lib/generators/markdowndocgenerator/toolbargenerator.js
npm notice 546B lib/generators/notebookgenerator/codemirror.d.ts
npm notice 938B lib/generators/notebookgenerator/codemirror.js
npm notice 299B lib/generators/notebookgenerator/heading.d.ts
npm notice 180B lib/generators/notebookgenerator/heading.js
npm notice 549B lib/generators/notebookgenerator/index.d.ts
npm notice 18.2kB lib/generators/notebookgenerator/index.js
npm notice 246B lib/generators/notebookgenerator/itemrenderer.d.ts
npm notice 5.0kB lib/generators/notebookgenerator/itemrenderer.js
npm notice 1.2kB lib/generators/notebookgenerator/optionsmanager.d.ts
npm notice 2.9kB lib/generators/notebookgenerator/optionsmanager.js
npm notice 1.0kB lib/generators/notebookgenerator/tagstool/index.d.ts
npm notice 4.7kB lib/generators/notebookgenerator/tagstool/index.js
npm notice 348B lib/generators/notebookgenerator/tagstool/tag.d.ts
npm notice 632B lib/generators/notebookgenerator/tagstool/tag.js
npm notice 574B lib/generators/notebookgenerator/tagstool/tagslist.d.ts
npm notice 2.1kB lib/generators/notebookgenerator/tagstool/tagslist.js
npm notice 1.7kB lib/generators/notebookgenerator/toolbargenerator.d.ts
npm notice 7.7kB lib/generators/notebookgenerator/toolbargenerator.js
npm notice 1.1kB lib/generators/shared.d.ts
npm notice 2.6kB lib/generators/shared.js
npm notice 81B lib/index.d.ts
npm notice 373B lib/index.js
npm notice 2.8kB lib/registry.d.ts
npm notice 1.8kB lib/registry.js
npm notice 3.6kB lib/toc.d.ts
npm notice 5.5kB lib/toc.js
npm notice 559B style/img/autonumbering_darktheme.svg
npm notice 343B style/img/autonumbering.svg
npm notice 264B style/img/check.svg
npm notice 320B style/img/code_darktheme.svg
npm notice 305B style/img/code.svg
npm notice 669B style/img/eyeball_hidden.svg
npm notice 619B style/img/eyeball_hover.svg
npm notice 617B style/img/eyeball_view.svg
npm notice 357B style/img/markdown_darktheme.svg
npm notice 363B style/img/markdown.svg
npm notice 264B style/img/menu_arrow.svg
npm notice 523B style/img/numbering.svg
npm notice 762B style/img/tag_darktheme.svg
npm notice 1.2kB style/img/tag.svg
npm notice 202B style/img/toggle_down_darktheme.svg
npm notice 181B style/img/toggle_down.svg
npm notice 189B style/img/toggle_right_darktheme.svg
npm notice 187B style/img/toggle_right.svg
npm notice 9.3kB style/index.css
npm notice 625B style/list-dark.svg
npm notice 625B style/list-light.svg
npm notice === Tarball Details ===
npm notice name: @jupyterlab/toc
npm notice version: 1.0.1
npm notice filename: jupyterlab-toc-1.0.1.tgz
npm notice package size: 24.7 kB
npm notice unpacked size: 111.9 kB
npm notice shasum: dc2551e628104e66be81fab287e46ea1af272584
npm notice integrity: sha512-6AQt/7qjNionI[...]hMcGnlF7p+NdQ==
npm notice total files: 64
npm notice
jupyterlab-toc-1.0.1.tgz
Yarn configuration loaded.
Node v10.13.0
Building jupyterlab assets (build:prod:minimize)
> node C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\staging\yarn.js install --non-interactive
yarn install v1.15.2
[1/5] Validating package.json...
[2/5] Resolving packages...
[3/5] Fetching packages...
info fsevents@1.2.9: The platform "win32" is incompatible with this module.
info "fsevents@1.2.9" is an optional dependency and failed compatibility check. Excluding it from installation.
[4/5] Linking dependencies...
[5/5] Building fresh packages...
success Saved lockfile.
Done in 4.89s.
> node C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\staging\yarn.js yarn-deduplicate -s fewer
yarn run v1.15.2
$ C:\Users\Alienware\Anaconda3\envs\tf2\share\jupyter\lab\staging\node_modules\.bin\yarn-deduplicate -s fewer
Done in 0.50s.
> node C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\staging\yarn.js run build:prod:minimize
yarn run v1.15.2
$ ensure-max-old-space webpack --config webpack.prod.minimize.config.js
child_process.js:632
throw err;
^
Error: spawnSync webpack ENOENT
at Object.spawnSync (internal/child_process.js:982:20)
at spawnSync (child_process.js:596:24)
at Object.execFileSync (child_process.js:624:13)
at Object.<anonymous> (C:\Users\Alienware\Anaconda3\envs\tf2\share\jupyter\lab\staging\node_modules\@jupyterlab\buildutils\lib\ensure-max-old-space.js:30:17)
at Module._compile (internal/modules/cjs/loader.js:688:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
at Module.load (internal/modules/cjs/loader.js:598:32)
at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
at Function.Module._load (internal/modules/cjs/loader.js:529:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:741:12)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
JupyterLab failed to build
Traceback (most recent call last):
File "C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\debuglog.py", line 47, in debug_logging
yield
File "C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\labextensions.py", line 105, in start
command=command, app_options=app_options)
File "C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\commands.py", line 459, in build
command=command, clean_staging=clean_staging)
File "C:\Users\Alienware\Anaconda3\envs\tf2\lib\site-packages\jupyterlab\commands.py", line 669, in build
raise RuntimeError(msg)
RuntimeError: JupyterLab failed to build
Exiting application: jupyter
我该如何解决这个问题？
答案 0 :(得分：0)
您是否尝试过先安装jupyter和jupyter实验室？
pip install jupyter
pip install jupyterlab
然后
jupyter labextension install @jupyterlab/toc
确保首先激活了anaconda环境。
答案 1 :(得分：0)
答案 2 :(得分：0)
这对我的跑步很有用：Microsoft Windows 7 Professional 6.1。
开始菜单>> Anaconda提示
首先运行以下命令下载npm，然后进行安装
npm install -g ijavascript
ijsinstall