Can't create react native project. Deprecated istanbul lib hook 1.2.1?

[amberkatyal]

I just recently started learning react-native and i'm facing issues from the beginning.
I installed node via homebrew : brew install node
Then watchman: brew install watchman
And then react-native: npm install -g react-native-cli

Now I tried to create a project: react-native init FCMTest

This is what console said:

[fsevents] Success: "/Users/amberkatyal/Documents/Workspace/React Native/FCMTest/node_modules/fsevents/lib/binding/Release/node-v64-darwin-x64/fse.node" already installed
Pass --update-binary to reinstall or --build-from-source to recompile
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN [email protected] requires a peer of [email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of eslint@^3.17.0 || ^4.0.0 but none is installed. You must install peer dependencies yourself.

+ [email protected]
added 717 packages from 365 contributors and audited 10502 packages in 116.279s
found 2 vulnerabilities (1 low, 1 high)
  run `npm audit fix` to fix them, or `npm audit` for details
Setting up new React Native app in /Users/amberkatyal/Documents/Workspace/React Native/FCMTest
Installing React...
npm WARN [email protected] requires a peer of eslint@^3.17.0 || ^4.0.0 but none is installed. You must install peer dependencies yourself.

+ [email protected]
added 1 package and audited 10542 packages in 23.235s
found 2 vulnerabilities (1 low, 1 high)
  run `npm audit fix` to fix them, or `npm audit` for details
Installing Jest...
npm WARN deprecated [email protected]: 1.2.0 should have been a major version bump
npm WARN [email protected] requires a peer of eslint@^3.17.0 || ^4.0.0 but none is installed. You must install peer dependencies yourself.

+ [email protected]
+ [email protected]
+ [email protected]
+ [email protected]
added 307 packages from 255 contributors, updated 1 package and audited 34313 packages in 77.816s
found 2 vulnerabilities (1 low, 1 high)
  run `npm audit fix` to fix them, or `npm audit` for details
To run your app on iOS:
   cd /Users/amberkatyal/Documents/Workspace/React Native/FCMTest
   react-native run-ios
   - or -
   Open ios/FCMTest.xcodeproj in Xcode
   Hit the Run button
To run your app on Android:
   cd /Users/amberkatyal/Documents/Workspace/React Native/FCMTest
   Have an Android emulator running (quickest way to get started), or a device connected
   react-native run-android

And now when I tried npm audit and npm audit fix it gives more errors:

npm ERR! code EAUDITNOPJSON
npm ERR! audit No package.json found: Cannot audit a project without a package.json

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/amberkatyal/.npm/_logs/2018-06-13T05_13_43_428Z-debug.log
Ambers-MacBook-Pro:React Native amberkatyal$ npm audit fix
npm ERR! code EAUDITNOPJSON
npm ERR! audit No package.json found: Cannot audit a project without a package.json

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/amberkatyal/.npm/_logs/2018-06-13T05_13_48_891Z-debug.log

Can anyone suggest how to fix the problem so that I can start doing something with react native?

[amberkatyal]

Was able to solve it by installing yarn package dependency manager. Without it its not working it must be written somewhere that it is mandatory then.