集成环信SDK后注册appkey时一直运行报错

2015-04-04 21:34:41.088 EasemobDemo -: unrecognized selector sent to instance 0x7b8876f0
2015-04-04 21:34:41.107 EasemobDemo *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-: unrecognized selector sent to instance 0x7b8876f0'
*** First throw call stack:
(
0 CoreFoundation 0x01fc4466 __exceptionPreprocess + 182
1 libobjc.A.dylib 0x011c6a97 objc_exception_throw + 44
2 CoreFoundation 0x01fcc2c5 - + 277
3 CoreFoundation 0x01f14bc7 ___forwarding___ + 1047
4 CoreFoundation 0x01f1478e _CF_forwarding_prep_0 + 14
5 EasemobDemo 0x000c4cd7 - + 138
6 EasemobDemo 0x000c4c33 __33+_block_invoke + 55
7 libdispatch.dylib 0x03cdfbef _dispatch_client_callout + 14
8 libdispatch.dylib 0x03cc9a92 dispatch_once_f + 363
9 libdispatch.dylib 0x03cc9922 dispatch_once + 31
10 EasemobDemo 0x000c4be8 + + 59
11 EasemobDemo 0x0004558a - + 55
12 EasemobDemo 0x000453dd - + 91
13 EasemobDemo 0x00045337 + + 87
14 EasemobDemo 0x00044431 - + 113
15 UIKit 0x025878d0 - + 290
16 UIKit 0x0258865b - + 2938
17 UIKit 0x0258bcb2 - + 1639
18 UIKit 0x025a4e1e __84-_block_invoke + 59
19 UIKit 0x0258a8da - + 155
20 FrontBoardServices 0x0724390e __37-_block_invoke_2 + 71
21 FrontBoardServices 0x0724339f __40-_block_invoke + 54
22 FrontBoardServices 0x072553a5 __31-_block_invoke + 26
23 CoreFoundation 0x01ee7970 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 16
24 CoreFoundation 0x01edd283 __CFRunLoopDoBlocks + 195
25 CoreFoundation 0x01edc9e8 __CFRunLoopRun + 936
26 CoreFoundation 0x01edc37b CFRunLoopRunSpecific + 443
27 CoreFoundation 0x01edc1ab CFRunLoopRunInMode + 123
28 UIKit 0x0258a292 - + 571
29 UIKit 0x0258d9b6 UIApplicationMain + 1526
30 EasemobDemo 0x0004517d main + 141
31 libdyld.dylib 0x03d0bac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException