"PluginError: Error with plugin "mathjax": Unexpected token <<" when running with gitbook 4.0.0-alpha.6

[brlin-tw]

Steps to Reproduce

1. rm -rf node_modules
2. gitbook -v 4.0.0-alpha.6 install
3. gitbook -v 4.0.0-alpha.6 build

Current Behavior

Warning: Accessing PropTypes via the main React package is deprecated, and will be removed in  React v16.0. Use the latest available v15.* prop-types package from npm instead. For info on usage, compatibility, migration and more, see https://fb.me/prop-types-docs
info: 10 plugins are installed 
info: 9 explicitly listed 
info: loading plugin "mathjax"... ERROR

PluginError: Error with plugin "mathjax": Unexpected token <<

Expected Behavior

No errors

Additional Information

• OS: KDE neon 5.10(based on Ubuntu 16.04 AMD64)
• Nodejs: v8.5.0 from Nodesource
• GitBook:
  • CLI version: 2.3.2
  • GitBook version: 3.2.3

[brlin-tw]

(facepalms)

[brlin-tw]

Moved to GitbookIO/plugin-mathjax#37