npm run dev error

[flofei]

Make sure these boxes are checked before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if any
• I have reproduced the issue with at least the latest released version of superset
• I have checked the issue tracker for the same issue and I haven't found one similar

Superset version

0.19.1 lasted version
node 6.9.1
python 3.5
npm 3.10.8

Expected results

everythins is ok

Actual results

when I run command 'npm run dev ' , it happened that error belows:

ERROR in ./node_modules/react-map-gl/node_modules/viewport-mercator-project/dist-es6/index.js
Module build failed: TypeError: E:/freepay/OpenSource/orgin/superset/superset/assets/node_modules/react-map-gl/node_modules/viewport-mercator-project/dist-es6/index.js: Cannot read property 'indexOf' of undefined
at Object.relative (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\source-map\lib\util.js:206:15)
at SourceMapConsumer_generatedPositionFor [as generatedPositionFor] (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\source-map\lib\source-map-consumer.js:731:21)
at E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\file\index.js:461:51
at Array.forEach (native)
at SourceMapConsumer_eachMapping [as eachMapping] (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\source-map\lib\source-map-consumer.js:155:14)
at File.mergeSourceMap (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\file\index.js:460:24)
at File.generate (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\file\index.js:719:25)
at File.transform (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\file\index.js:554:17)
at E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\pipeline.js:50:19
at File.wrap (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\file\index.js:564:16)
at Pipeline.transform (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-core\lib\transformation\pipeline.js:47:17)
at transpile (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-loader\lib\index.js:49:20)
at Object.module.exports (E:\freepay\OpenSource\orgin\superset\superset\assets\node_modules\babel-loader\lib\index.js:174:20)
@ ./node_modules/react-map-gl/dist/components/interactive-map.js 47:31-67
@ ./node_modules/react-map-gl/dist/index.js
@ ./visualizations/mapbox.jsx
@ ./visualizations/main.js
@ ./javascripts/modules/superset.js
@ ./javascripts/dashboard/Dashboard.jsx
@ multi babel-polyfill

./javascripts/dashboard/Dashboard.jsx

Steps to reproduce

1. get last code
   2.run command 'npm run dev'

[graceguo-supercat]

see this section: https://github.com/apache/incubator-superset/blob/master/CONTRIBUTING.md#npm-packages

Did you run

yarn

to install new dependencies?

[flofei]

yes, I did it

[mistercrunch]

We don't really support windows since none of the committers use it. If someone wants to add fixes to the build pipeline to support Windows we'll review them.