mac上无法解决的react-native run-ios错误

So my problem is that when i first installed react-native and created a project (react-native init projectname), it was working properly. i mean when i did react-native run-ios, it was working and i even changed in App.js to hello world and stuff, it was working. then i installed open maps and linked them together, and i followed some tutorials on how to open a map on react-native, the last step was to restart it, but what i did was interrupt the terminal close the simulator, and run it again. and since then its not working. I tried everything every solution found online, i even deleted the project and created again. uninstall react-native and reinstall it even the npm. i did the rm -rf ios/build, rm -rf node_modules.... even i found a solution about ports 8081, to kill the pid. nothing worked. all i'm getting is the following. i even installed babel. Please help me!! PS: i'm using mac. So my problem is that when i first installed re