Yes
Yes.
Node Version - v11.2.0
NPM Version - 6.4.1
System:
OS: macOS High Sierra 10.13.3
CPU: x64 Intel(R) Core(TM) i7-3635QM CPU @ 2.40GHz
Binaries:
Node: 11.2.0 - /usr/local/bin/node
npm: 6.4.1 - ~/.npm-packages/bin/npm
Browsers:
Chrome: 70.0.3538.110
Firefox: 62.0.3
Safari: 11.0.3
npmPackages:
react: ^16.6.3 => 16.6.3
react-dom: ^16.6.3 => 16.6.3
react-scripts: 2.1.1 => 2.1.1
npmGlobalPackages:
create-react-app: 2.1.1
It should start the development environment and start the application.
Failed at the start script and didn't run nothing.

The complete log about what happened:
0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/Cellar/node/11.2.0/bin/node',
1 verbose cli '/Users/Lucas/.npm-packages/bin/npm',
1 verbose cli 'start' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle [email protected]~prestart: [email protected]
6 info lifecycle [email protected]~start: [email protected]
7 verbose lifecycle [email protected]~start: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~start: PATH: /Users/Lucas/.npm-packages/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/Lucas/Desktop/Gestor Jump Park/react/my-app/node_modules/.bin:/usr/local/opt/node@6/bin:/usr/local/opt/icu4c/sbin:/usr/local/opt/icu4c/bin:/usr/local/opt/icu4c/sbin:/usr/local/opt/icu4c/bin:/opt/local/bin:/opt/local/sbin:/Users/Lucas/.npm-packages/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Users/Lucas/Library/Android/sdk/tools:/Users/Lucas/Library/Android/sdk/platform-tools
9 verbose lifecycle [email protected]~start: CWD: /Users/Lucas/Desktop/Gestor Jump Park/react/my-app
10 silly lifecycle [email protected]~start: Args: [ '-c', 'react-scripts start' ]
11 silly lifecycle [email protected]~start: Returned: code: 1 signal: null
12 info lifecycle [email protected]~start: Failed to exec start script
13 verbose stack Error: [email protected] start: react-scripts start
13 verbose stack Exit status 1
13 verbose stack at EventEmitter.
13 verbose stack at EventEmitter.emit (events.js:182:13)
13 verbose stack at ChildProcess.
13 verbose stack at ChildProcess.emit (events.js:182:13)
13 verbose stack at maybeClose (internal/child_process.js:978:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:265:5)
14 verbose pkgid [email protected]
15 verbose cwd /Users/Lucas/Desktop/Gestor Jump Park/react/my-app
16 verbose Darwin 17.4.0
17 verbose argv "/usr/local/Cellar/node/11.2.0/bin/node" "/Users/Lucas/.npm-packages/bin/npm" "start"
18 verbose node v11.2.0
19 verbose npm v6.4.1
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] start: react-scripts start
22 error Exit status 1
23 error Failed at the [email protected] start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]
Try running this command:
create-react-app appname --save
or
create-react-app appname --save-exact and then try again.
make sure no antivirus is running if you have any. Stop/pause all antivirus or protection software.
if it persists you can try using a newer version of node.
@ephraims500 didn't work...
I tried both solutions but nothing, the same problem...
My node version is the latest I think: v11.2.0
Hmmmmmm, okay try cleaning the cache: npm cache clean --force
after that run this: create-react-app appname --save-exact and try again.
if that doesn't work, then I think it's something to look into.
I too have the same problem, it says Couldn't find module "object-hash"
Browser:
Console:
Same error here, I'm using Ubuntu 18.04.
I've found two ways to fix that.FYI every time I restart my computer, this error occurs, somehow if I simply delete the node_modules folder and install again solves the problem, the error message persists, so, It forces me to completely delete NPM and NODE from my computer and re-install again to work properly.
It's very annoying I hope they find some fix soon, I've seen more people around the internet having the exact same issue.
Hi @afonsolopez, same issue here.
Did you find a solution ?
Hi, there's a lot of issues going on here -- can users please open a new (unique) issue if you're experiencing an issue? Thanks!