gitbook：node_modules\npm\node_modules\graceful-fs\polyfills.js:287

1.异常

执行gitbook serve错误：

C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287
      if (cb) cb.apply(this, arguments)
                 ^

执行gitbook serve过程：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook serve
Live reload server started on port: 35729
Press CTRL+C to quit ...

C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287
      if (cb) cb.apply(this, arguments)
                 ^

TypeError: cb.apply is not a function
    at C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287:18
    at FSReqCallback.oncomplete (fs.js:169:5)

2.环境

node

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ node -v
v12.22.3

npm

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ npm -v
6.14.13

3.原因

参考：

https://stackoverflow.com/questions/64211386/gitbook-cli-install-error-typeerror-cb-apply-is-not-a-function-inside-graceful

The issue was originally a problem inside graceful-fs but they solved it in this commit I believe.

The problem is that GitBook is still using outdated dependencies that pull in versions of graceful-fs without the fix.

按照上面的解释，只需要更新graceful-fs版本即可。

4.解决

我的gitbook是global安装：npm install -g gitbook-cli

根据报错信息：

C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287
if (cb) cb.apply(this, arguments)

我切换到目录：

C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\

执行命令：

EB@DESKTOP-K45IA6V MINGW64 ~/AppData/Roaming/npm/node_modules/gitbook-cli/node_modules/npm/node_modules
$ npm install graceful-fs@latest --save
npm notice created a lockfile as package-lock.json. You should commit this file.
+ graceful-fs@4.2.6
updated 1 package in 1.308s

更新成功（graceful-fs）。

再次尝试：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook serve
Live reload server started on port: 35729
Press CTRL+C to quit ...

info: 7 plugins are installed
info: loading plugin "livereload"... OK
info: loading plugin "highlight"... OK
info: loading plugin "search"... OK
info: loading plugin "lunr"... OK
info: loading plugin "sharing"... OK
info: loading plugin "fontsettings"... OK
info: loading plugin "theme-default"... OK
info: found 16 pages
info: found 14 asset files
_stream_readable.js:637
  if (state.pipesCount === 1) {
            ^

TypeError: Cannot read property 'pipesCount' of undefined
    at ReadStream.Readable.pipe (_stream_readable.js:637:13)
    at C:\Users\EB\.gitbook\versions\3.2.3\node_modules\cpr\lib\index.js:163:22
    at callback (C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:299:20)
    at FSReqCallback.oncomplete (fs.js:168:21)

仍然报错！

最终解决：

参考：https://blog.csdn.net/test1280/article/details/118961808

降级nodejs版本为：node-v9.11.2-x64.msi

再次重试：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook init
info: create SUMMARY.md
info: initialization is finished

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook serve
Live reload server started on port: 35729
Press CTRL+C to quit ...

info: 7 plugins are installed
info: loading plugin "livereload"... OK
info: loading plugin "highlight"... OK
info: loading plugin "search"... OK
info: loading plugin "lunr"... OK
info: loading plugin "sharing"... OK
info: loading plugin "fontsettings"... OK
info: loading plugin "theme-default"... OK
info: found 16 pages
info: found 14 asset files
info: >> generation finished with success in 1.2s !

Starting server ...
Serving book on http://localhost:4000

成功启动：

5.后记

5.1.case1

node-v14.17.3-x64.msi

gitbook init报错：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook init
Installing GitBook 3.2.3
C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287
      if (cb) cb.apply(this, arguments)
                 ^

TypeError: cb.apply is not a function
    at C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287:18
    at FSReqCallback.oncomplete (fs.js:193:5)

gitbook init报错（或）：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook init
warn: no summary file in this book
info: create README.md
info: create SUMMARY.md

TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received an instance of Promise

5.2.case2

node-v12.22.3-x64.msi

gitbook serve报错：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook serve
Live reload server started on port: 35729
Press CTRL+C to quit ...

C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287
      if (cb) cb.apply(this, arguments)
                 ^

TypeError: cb.apply is not a function
    at C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:287:18
    at FSReqCallback.oncomplete (fs.js:169:5)

更新graceful-fs，仍然报错：

EB@DESKTOP-K45IA6V MINGW64 ~/Desktop/test1280-gitbook
$ gitbook serve
Live reload server started on port: 35729
Press CTRL+C to quit ...

info: 7 plugins are installed
info: loading plugin "livereload"... OK
info: loading plugin "highlight"... OK
info: loading plugin "search"... OK
info: loading plugin "lunr"... OK
info: loading plugin "sharing"... OK
info: loading plugin "fontsettings"... OK
info: loading plugin "theme-default"... OK
info: found 16 pages
info: found 14 asset files
_stream_readable.js:637
  if (state.pipesCount === 1) {
            ^

TypeError: Cannot read property 'pipesCount' of undefined
    at ReadStream.Readable.pipe (_stream_readable.js:637:13)
    at C:\Users\EB\.gitbook\versions\3.2.3\node_modules\cpr\lib\index.js:163:22
    at callback (C:\Users\EB\AppData\Roaming\npm\node_modules\gitbook-cli\node_modules\npm\node_modules\graceful-fs\polyfills.js:299:20)
    at FSReqCallback.oncomplete (fs.js:168:21)

5.3.case3

node-v9.11.2-x64.msi

成功。

6.参考

https://blog.csdn.net/test1280/article/details/118961808