Error: Unable to resolve module  ./index  from 
ode_modules\react-native\scripts/. : The module  ./index  could not be found from 
ode_modules\react-native\scripts/. . Indeed, none of these files exist:
 
"react": "^16.8.4", "react-native": "^0.59.0",

해결 방법:

Though you will need to do this for every time you start a new project.. its an upgrade issue from react-native
Update node_modules\react-native\scripts\launchPackager.bat file. @echo off title Metro Bundler call .packager.bat

// delete this line
node "%~dp0..\cli.js" start 

Add this line
node "%~dp0..\cli.js" start --projectRoot ../../../ 

pause
exit

We are giving project root path to Metro instance here,
Or in ode_modules@react-native-community\cli\build\commands\runAndroid\runAndroid.js edit this, const procConfig = {

    // delete this line    
    cwd: scriptsDir

    // add this line
    cwd: process.cwd()
};