Command PhaseScriptExecution failed with a nonzero exit code

[chenop]

IOS = 11.0.1
Xcode=12.2
react-native-config=^1.3.3

In IOS Only - Got this error when I got empty line in my .env.[some_env] files

FIRST_PARAM=SOMETHING

SECOND_PARAM_AFTER_EMPTY_LINE=SOMETHING

Solution is deleting the empty line

[renielsalvador]

that's strange, it used to work with empty lines

[DilipLohar123]

i got this error
then I used unformatted .evn file

[Sahil6458]

I simply give permission to node_modules of read/write/execute . sudo chmod -R 777 node_modules/*

[russelRajitha]

you saved the day

I simply give permission to node_modules of read/write/execute . sudo chmod -R 777 node_modules/*

[AbhiVini]

I simply give permission to node_modules of read/write/execute . sudo chmod -R 777 node_modules/*

I struggled for 2 days, thank you for this answer