ios-sim stopped working "NSCFString containsString" error

Question

I'm using Ionic to build a hybrid mobile app. Previously I've had no trouble launching the emulator via "ionic emulate ios" command. But all of a sudden the command started throwing errors.

I've tried removing then adding back the ios platform, uninstalling then re-installing ios-sim, but still get the same error message below. Any help would be much appreciated, thanks

2015-06-13 14:06:20.198 ios-sim[12997:507] -[__NSCFString containsString:]: unrecognized selector sent to instance 0x7f98e06006e0
2015-06-13 14:06:20.200 ios-sim[12997:507] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString containsString:]: unrecognized selector sent to instance 0x7f98e06006e0'
*** First throw call stack:
(
 0   CoreFoundation                      0x00007fff9303925c __exceptionPreprocess + 172
 1   libobjc.A.dylib                     0x00007fff9058ee75 objc_exception_throw + 43
 2   CoreFoundation                      0x00007fff9303c12d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
 3   CoreFoundation                      0x00007fff92f97272 ___forwarding___ + 1010
 4   CoreFoundation                      0x00007fff92f96df8 _CF_forwarding_prep_0 + 120
 5   ios-sim                             0x0000000107511534 -[iPhoneSimulator runWithArgc:argv:] + 1313
 6   ios-sim                             0x0000000107511e79 main + 101
 7   ios-sim                             0x000000010750f0e0 start + 52
 8   ???                                 0x000000000000000a 0x0 + 10
)
libc++abi.dylib: terminating with uncaught exception of type NSException

Answer 1

What version of ios-sim are you using? (Run ios-sim --version to find out.)

The containsString crash on Mavericks is caused by this bug, which exists in v3.2.0 (see here).

If you downgrade to v3.1.1, or upgrade to v4.1.1, then ios-sim should work fine on Mavericks.