尝试使用Error: cannot resolve path (or pattern) '$npm_package_options_mocha'
at Object.lookupFiles (C:\Users\Kaleab\Desktop\addis_map\google-maps-react
ode_modules\mocha\lib\utils.js:634:15)
at C:\Users\Kaleab\Desktop\addis_map\google-maps-react\node_modules\mocha\
n\_mocha:327:30
at Array.forEach (native)
at Object.<anonymous> (C:\Users\Kaleab\Desktop\addis_map\google-maps-react
ode_modules\mocha\bin\_mocha:326:6)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:393:7)
at startup (bootstrap_node.js:150:9)
at bootstrap_node.js:508:3
Done in 46.84s.
启动开发服务器时遇到以下错误。这似乎与npm包选项mocha的路径有关。我使用的是Windows 8.1。如果涉及NODE env变量，我安装了cross-env，但无济于事。你能说出为什么会这样吗？
un-indent