用yarn安装phantomjs-prebuilt 运行test报错

[joket1999]

报错：Path must be a string. Received null 解决方法：用yarn安装所有依赖后，再用npm 重新安装phantomjs-prebuilt，运行yarn test 或者 npm run test就可以了 参考：https://github.com/karma-runner/karma-phantomjs-launcher/issues/120