You will find here answers to common problems:

‘image not found’ error at launch.

Make sure you include GSSDK.framework in the Embedded Binaries section of your project.

Unsupported architecture when Archiving for App Store

Please make sure you have stripped out the i386 and x86_64 slices, as described in the integration instructions.

‘Code signing GSSDK.framework failed’ when archiving for App Store

Refer to above issue.