Invalid regular expression: /(.*\\__fixtures__\\.*|node_modules[\\\]react[\\\]dist[\\\].*|website\\node_modules\\.*|heapCapture\\bundle\.js|.*\\__tests__\\.*)$/: Unterminated character class
To fix the Invalid Regular Expressing while running
react-native start
Go to \node_modules\metro-config\src\defaults\blacklist.js
if metro-config not found
then, go to \node_modules\metro\src\blacklist.js
Replace the SharedBlacklist with the following
var sharedBlacklist = [
/node_modules[\/\\]react[\/\\]dist[\/\\].*/,
/website\/node_modules\/.*/,
/heapCapture\/bundle\.js/,
/.*\/__tests__\/.*/
];