Cannot start npm in the react native tutorial

Question

I'm beginning with react native today. I've never used it before. I tried to follow the most simple tutorial I've followed in my life: quick-start just until npm start

And there's no way I can run it. I've been trying for hours because it seems ridiculous, but the true is that I'm not getting it.

I use Ubuntu 16.04

npm -v: 4.6.1
node -v: v8.4.0

I've googled a lot, of course, but I didn't find anyone with my problem.

I'm getting these errors:

react-native-scripts start

01:06:19: Unable to start server See https://git.io/v5vcn for more information, either install watchman or run the following snippet:
sudo sysctl -w fs.inotify.max_user_instances=1024 sudo sysctl -w fs.inotify.max_user_watches=12288 npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! [email protected] start: react-native-scripts start npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

and I got these warning while I tried: create-react-native-app AwesomeProject

npm WARN [email protected] requires a peer of react@^0.14.0 || ^15.0.0-0 || ^16.0.0-0 but none was installed.

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.1.1 (node_modules/jest-haste-map/node_modules/sane/node_modules/fsevents):

npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

npm WARN [email protected] requires a peer of react@>= 16.0.0 but none was installed.

npm WARN [email protected] requires a peer of react@>=15.4.0 but none was installed.

npm WARN [email protected] requires a peer of react@>=15.3.1 but none was installed.

I ran sudo npm i -g react and nothing, then sudo npm i -g [email protected] and nothing.

I cannot install 16.0.0, because the "options" are: 0.0.1, 0.0.2, 0.0.3, 0.1.2, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.3.0, 0.3.4, 0.3.5, 0.5.0, 0.5.1, 0.5.2, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.7.0, 0.7.1, 0.8.0, 0.9.0-rc1, 0.9.0, 0.10.0-rc1, 0.10.0, 0.11.0-rc1, 0.11.0, 0.11.1, 0.11.2, 0.12.0-rc1, 0.12.0, 0.12.1, 0.12.2, 0.13.0-alpha.1, 0.13.0-alpha.2, 0.13.0-beta.1, 0.13.0-beta.2, 0.13.0-rc1, 0.13.0-rc2, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.14.0-alpha1, 0.14.0-alpha2, 0.14.0-alpha3, 0.14.0-beta1, 0.14.0-beta2, 0.14.0-beta3, 0.14.0-rc1, 0.14.0, 0.14.1, 0.14.2, 0.14.3, 0.14.4, 0.14.5, 0.14.6, 0.15.0-alpha.1, 0.14.7, 15.0.0-rc.1, 15.0.0-rc.2, 0.14.8, 15.0.0, 15.0.1, 15.0.2-alpha.1, 15.0.2-alpha.2, 15.0.2-alpha.3, 15.0.2-alpha.4, 15.0.2, 15.0.3-alpha.1, 15.0.3-alpha.2, 15.1.0-alpha.1, 15.1.0, 15.2.0-rc.1, 15.2.0-rc.2, 15.2.0, 15.2.1, 15.3.0-rc.1, 15.3.0-rc.2, 15.3.0-rc.3, 15.3.0, 15.3.1-rc.1, 15.3.1-rc.2, 15.3.1, 15.3.2-rc.1, 15.3.2, 15.4.0-rc.1, 15.4.0-rc.2, 15.4.0-rc.3, 15.4.0-rc.4, 15.4.0, 15.4.1, 15.4.2, 16.0.0-alpha, 16.0.0-alpha.0, 16.0.0-alpha.2, 16.0.0-alpha.3, 16.0.0-alpha.4, 16.0.0-alpha.5, 16.0.0-alpha.6, 15.5.0-rc.1, 16.0.0-alpha.7, 15.5.0-rc.2, 16.0.0-alpha.8, 15.5.0, 15.5.1, 15.5.2, 15.5.3, 15.5.4, 16.0.0-alpha.9, 0.14.9, 16.0.0-alpha.10, 16.0.0-alpha.11, 16.0.0-alpha.12, 15.6.0-rc.1, 16.0.0-alpha.13, 15.6.0, 15.6.1, 16.0.0-beta.1, 16.0.0-beta.2, 16.0.0-beta.3, 16.0.0-beta.4, 16.0.0-beta.5

And https://git.io/v5vcn is as helpful as a github open ticket could be...

So, I don't know what can be wrong. Did anybody try to run that simple tutorial with ubuntu 16.04? Maybe someone got an answer.

Answer 1

I solved it, it seems that I didn't have enough instances and watches. Just run these two commands, and it's gonna work.

sudo sysctl -w fs.inotify.max_user_instances=1024
sudo sysctl -w fs.inotify.max_user_watches=12288

and remember:

npm -v: 4.6.1
node -v: v8.4.0

Answer 2

I get entirely different commands in my error, probably the result of the updated versions of Node and npm I have installed (npm -v: 5.6.0 and node -v: v8.11.3):

  sudo sysctl -w kern.maxfiles=5242880
  sudo sysctl -w kern.maxfilesperproc=524288

These get the tutorial running for me in iOS via the Expo app.