React Native 0.68 upgrade issue in iOS

Question

I have recently upgraded my react native project from 0.62 to 0.68. New Architecture set up has be implemented in android and the code is working fine. But when i try to upgrade the new architectural changes for iOS, but code doesn't run at all. Everytime i get

  Command PhaseScriptExecution failed with a nonzero exit code 
  FBReactNativeSpec.build/Script-46EB2E00014D80.sh

React-Native documentation https://reactnative.dev/docs/next/new-architecture-app-intro isn't helping me at all in building my ios code.

I have tried creating new react native sample projects, but even those projects are also not working with latest architectural changes.

I have tried all the solutions out there.

Can anyone please help me in the upgradation steps for iOS.

Answer 1

If anyone facing the FBReactNativeSpec issue with latest react native version 0.68 after upgrade, comment this line from node_modules > react-native > scripts > find-node.sh

# # Define NVM_DIR and source the nvm.sh setup script
# [ -z "$NVM_DIR" ] && export NVM_DIR="$HOME/.nvm"

# # Source nvm with '--no-use' and then `nvm use` to respect .nvmrc
# # See: https://github.com/nvm-sh/nvm/issues/2053
# if [[ -s "$HOME/.nvm/nvm.sh" ]]; then
#   # shellcheck source=/dev/null
#   . "$HOME/.nvm/nvm.sh" --no-use
#   nvm use 2> /dev/null || nvm use default
# elif [[ -x "$(command -v brew)" && -s "$(brew --prefix nvm)/nvm.sh" ]]; then
#   # shellcheck source=/dev/null
#   . "$(brew --prefix nvm)/nvm.sh" --no-use
#   nvm use 2> /dev/null || nvm use default
# fi

Code started working after it. Also please do check your .bashprofile and .zrsh profile remove nvm path if found from these files also.

Good Luck