`gitbook-cli install` failed when trying to fetch eslint-config-chartjs because of the way it was installed (ie. using the GitHub repository URL). The shared config is now published on npmjs: https://www.npmjs.com/package/eslint-config-chartjs
"child-process-promise": "^2.2.1",
"coveralls": "^3.0.0",
"eslint": "^4.9.0",
- "eslint-config-chartjs": "git+https://github.com/chartjs/eslint-config-chartjs.git",
+ "eslint-config-chartjs": "^0.1.0",
"gitbook-cli": "^2.3.2",
"gulp": "3.9.x",
"gulp-concat": "~2.6.x",