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I tried to build my react-native application using npx react-native run-android command. App builds successfully but metro blunder not opening and return following error message.

launchPackager.command” can’t be opened because (null) is not allowed to open documents in Terminal.

Anyone has an idea to fix this issue ?

My machine specifications : MacBook Pro M1, macOS Ventura 13

Ruchira Swarnapriya
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3 Answers3

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i found solution to this in other thread....

“launchPackager.command” can’t be opened

but i wanted to fix the issue and keep using default terminal instead of using different terminal options....if anyone gets a solution for it plz do reply.

same os version - ventura.

Yashraj Anand
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There is a one solution but need to do it manually.

Go to your project folder -> node modules -> react native -> scripts -> open "launchPackager.command"

you all good now

Ruchira Swarnapriya
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The problem was that this script couldn't find the application to run this command.

Permanent solution: Set iTerm as the Default Handler for *.command Files

  • Open node_modules/react-native/scripts/ in Finder (open node_modules/react-native/scripts/)
  • Right-click on launchPackager.command and click Open With then choose Other...
  • In your Applications directory, select iTerm and click Always Open With
utkarsh
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