Cannot build latest fails with gulp sourcemap error

[nlighteneddesign]

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

Latest HEAD

Expected results

npm install would install superset

Actual results

npm ERR! fetch failed https://registry.npmjs.org/gulp-sourcemaps/-/gulp-sourcemaps-1.7.0.tgz

Steps to reproduce

clone repository
cd incubator-superset/superset/assets
npm install

[xrmx]

Uhm, we don't have a dependency on gulp-sourcemaps or use gulp either.

[nlighteneddesign]

Looks like it's a subdependency, I am trying to track it down now.

[xrmx]

FYI I don't have it in my yarn.lock.

[sreeramvuppala]

getting the same error on a fresh installation..

[sreeramvuppala]

changed the version on these two dependencies
"mapbox-gl": "^0.26.0" - "mapbox-gl": "^0.27.0"
"react-map-gl": "^1.7.0" - "react-map-gl": "^2.0.0".
Now I was able to successfully execute npm install.. I haven't tested the app with these two new versions.

Just preliminary check. Will check the repos of two libraries above mapbox and uber.
Please let me know if my observations are wrong.

[STILLSHI]

@sreeramvuppala
thanks, after the change how long you finishing running the npm install? it looks forever...

[nlighteneddesign]

It took a few minutes the first time.