Compilation of µWebSockets has failed and there is no pre-compiled binary available for your system

[iammelvin]

Is this a bug report?

Yes

I cloned a react-native project from github then ran npm run eject after then when i tried to run the app using react-native run-android i am getting the below error

Compilation of µWebSockets has failed and there is no pre-compiled binary available for your system.Please install a supported C++11 compiler and reinstall the module 'uws'.

Because of this the packager server exits and i couldn't connect to dev server from my physical device also one more issue i face is when i try to run adb reverse tcp:8081 tcp:8081 i am getting address already in use but i tried to kill adb using adb kill-server but still i get the same error.Need some help to get passed this as a new dev to react native.Thanks in advance !

[dnfield]

Do you have a C++11 compiler installed on your OS? Have you tried to reinstall the uws module?

This doesn't sound like a react-native issue, it sounds like an environmental issue/issue with the repo you cloned...

[iammelvin]

@dnfield Hey yes i did install c++ built tools 2015 and set env variable after a long time banging my head i found and fixed the issue just now.There was this binding.gyp file missing in node-gyp which i created manually and then it is now working will set this issue to closed.Thanks for responding.

[lfernando-silva]

I reinstalled C++ built tools 2015 and it worked on windows 10.

[brunolemos]

I was able to fix this on a mac by doing:

cd node_modules/uws
npm install

[minhduchua]

@iammelvin
We ran into the same problem on OSX High Sierra, react-native 0.48, XCode 9.3
What did you do in the node-gyp config which solved this issue?
That would certainly help.
Thx

[maciossek]

Dunno if this helps, but I had the same error using Node 10, switched to Node v9 and it works like a charm

[minhduchua]

@maciossek
EDITED 2018-06-21 16.31 CEST
Thx, this helps indeed.
This is because uws v8.14.0, required in socketcluster-server by the metro packager, is not compatible with node 10.
In order to use node 10, you can require uws v10.148.0 in devDependencies you can force uws version to v10.148.0 by following: https://stackoverflow.com/a/48524488/5612908
Sorry, I should have come back and posted it earlier, I went so many places to solve this that I forgot half of them posting feedback...