Unable to run on iphone4/ios7

Hi all, when I try to exec my app on my iphone4/ios7 via XCODE I get this:

2015-03-04 01:18:43.879 FindYourItaly[512:60b] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIApplication 0x15672c90> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key view.'
*** First throw call stack:
(0x2e21cf4b 0x3865d6af 0x2e21cc61 0x2eb5c18b 0x2eb6ddd5 0x2e18ce6f 0x30ceef87 0x30cf07eb 0x30c0894b 0x309fa265 0x3099541f 0x30994721 0x309f9b3d 0x32e7870d 0x32e782f7 0x2e1e79df 0x2e1e797b 0x2e1e614f 0x2e150c27 0x2e150a0b 0x309f8dd9 0x309f4049 0xf3c9b 0x38b65ab7)
libc++abi.dylib: terminating with uncaught exception of type NSException

What is this ? Where is my error?

On Android I have no problem.