After create-react-app, `npm start` not work

Describe the bug

I follow the process on (https://reactjs.org/docs/create-a-new-react-app.html) to Create React App, npx create-react-app my-app cd my-app npm start But npm start can not work and the essor message as below,

> my-app@0.1.0 start /Users/cortey/Documents/GitHub/WebProject-React/my-app
> react-scripts start

Attempting to bind to HOST environment variable: x86_64-apple-darwin13.4.0
If this was unintentional, check that you haven't mistakenly set it in your shell.
Learn more here: https://bit.ly/CRA-advanced-config

events.js:174
      throw er; // Unhandled 'error' event
      ^

Error: getaddrinfo ENOTFOUND x86_64-apple-darwin13.4.0
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:56:26)
Emitted 'error' event at:
    at GetAddrInfoReqWrap.doListen [as callback] (net.js:1457:12)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:56:17)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! my-app@0.1.0 start: `react-scripts start`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the my-app@0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/cortey/.npm/_logs/2020-07-17T04_51_32_683Z-debug.log

The complete log of this run is here,

0 info it worked if it ends with ok
1 verbose cli [ '/Users/cortey/.nvm/versions/node/v10.16.0/bin/node',
1 verbose cli   '/Users/cortey/.nvm/versions/node/v10.16.0/bin/npm',
1 verbose cli   'start' ]
2 info using npm@6.14.6
3 info using node@v10.16.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle my-app@0.1.0~prestart: my-app@0.1.0
6 info lifecycle my-app@0.1.0~start: my-app@0.1.0
7 verbose lifecycle my-app@0.1.0~start: unsafe-perm in lifecycle true
8 verbose lifecycle my-app@0.1.0~start: PATH: /Users/cortey/.nvm/versions/node/v10.16.0/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/cortey/Documents/GitHub/WebProject-React/my-app/node_modules/.bin:/Users/cortey/.nvm/versions/node/v10.16.0/bin:/anaconda3/bin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/mysql/bin:/usr/local/mysql/support-files:/Applications/Postgres.app/Contents/Versions/11/bin:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Users/cortey/.nvm/versions/node/v10.16.0/bin:/Users/cortey/opt/anaconda3/bin:/Users/cortey/opt/anaconda3/condabin:/anaconda3/bin:/Library/Frameworks/Python.framework/Versions/3.7/bin
9 verbose lifecycle my-app@0.1.0~start: CWD: /Users/cortey/Documents/GitHub/WebProject-React/my-app
10 silly lifecycle my-app@0.1.0~start: Args: [ '-c', 'react-scripts start' ]
11 silly lifecycle my-app@0.1.0~start: Returned: code: 1  signal: null
12 info lifecycle my-app@0.1.0~start: Failed to exec start script
13 verbose stack Error: my-app@0.1.0 start: `react-scripts start`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (/Users/cortey/.nvm/versions/node/v10.16.0/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:198:13)
13 verbose stack     at ChildProcess.<anonymous> (/Users/cortey/.nvm/versions/node/v10.16.0/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:198:13)
13 verbose stack     at maybeClose (internal/child_process.js:982:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid my-app@0.1.0
15 verbose cwd /Users/cortey/Documents/GitHub/WebProject-React/my-app
16 verbose Darwin 19.3.0
17 verbose argv "/Users/cortey/.nvm/versions/node/v10.16.0/bin/node" "/Users/cortey/.nvm/versions/node/v10.16.0/bin/npm" "start"
18 verbose node v10.16.0
19 verbose npm  v6.14.6
20 error code ELIFECYCLE
21 error errno 1
22 error my-app@0.1.0 start: `react-scripts start`
22 error Exit status 1
23 error Failed at the my-app@0.1.0 start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

Actually, I npx create-react-app my-app one month ago, and it works! But today, I can create a new one but cannot run it. Plus, I changed my hosts yesterday, just add a domain, so it seems not the hosts problem.

My etc/hosts file

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1	localhost
255.255.255.255	broadcasthost
::1             localhost
127.0.0.1 api.promernstack.com ui.promernstack.com

[sanjeetCoder]

This problem is only present with react-scripts@3.0.0, downgrading to react-scripts@2.1.8 resolved the issue. TRY THIS

create-react-app my-app
cd my-app
npm install react-scripts@2.1.8
npm start

No need to downgrade react-script

Add .env file inside project folder (outside src folder) and add a line mentioned below:- SKIP_PREFLIGHT_CHECK=true then npm start

[rutikwankhade]

This problem is only present with react-scripts@3.0.0, downgrading to react-scripts@2.1.8 resolved the issue. TRY THIS

create-react-app my-app
cd my-app
npm install react-scripts@2.1.8
npm start