This part of the tutorial:
http://facebook.github.io/react-native/docs/nativemodulesios.html#content

Will cause the not-very-helpful error "Unrecognized selector sent to instance 0x7fc546a12b30" bridge is not synthesized, and this needs to be added to CalendarManager.m:
@synthesize bridge = _bridge;
It's in the RCTBridgeModule code (
|
* To implement this in your module, just add @synthesize bridge = _bridge; |
), but it took me quite some time to figure out because the error message is so weird (or at least to me that has only done a little iOS development before). A lot of the people doing this tutorial are going to be semi-fresh to iOS development.
This part of the tutorial:

http://facebook.github.io/react-native/docs/nativemodulesios.html#content
Will cause the not-very-helpful error "Unrecognized selector sent to instance 0x7fc546a12b30" bridge is not synthesized, and this needs to be added to CalendarManager.m:
@synthesize bridge = _bridge;It's in the RCTBridgeModule code (
react-native/React/Base/RCTBridgeModule.h
Line 32 in 6500ba7