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Getting same thing here on iOS (working fine on Android)
RN 0.44
react-native-image-crop-picker 0.16.0

installation of library failed. Please read installation instructions again, follow each step and make sure each step succeeds.
I did follow the steps exactly and used CocoaPods. It worked fine while running on my iPhone 6 via Xcode. However, on the Simulator it did not work. It failed right before the permissions step.. maybe it's something to do with that?
@dgurns did you got what is the solution, i'm facing same error?
Add this in you MainApplication.java, sometimes react-native link does not work perfectly.

I was having a similar issue on iOS. I also use other cocoapods dependencies so I made a podspec that works for me. Made a PR for it here: #454
@congdufs please try suggestion from @Mandeep03
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Getting same thing here on iOS (working fine on Android)
RN 0.44
react-native-image-crop-picker 0.16.0