iphone - Failed to upgrade the iOS application while app is doing network operations using sockets -


when trying update application using itunes, getting error pop-up - unable download application. running error only when app doing network operations using sockets. in other scenarios app either not running or idle, works correctly.

from console logs, got following error message -

2013-04-18 10:11:39 gmt+07:00 backboardd <warning>: pid_suspend failed [7104]: unknown error: -1, unknown error: -1 2013-04-18 10:11:39 gmt+07:00 backboardd <warning>: not set priority of [7104] 4096, priority: no such process 2013-04-18 10:11:39 gmt+07:00 backboardd <warning>: application 'uikitapplication:com.avaya.avsipiphonecfe[0xe6ed]' exited abnormally signal 9: killed: 9 

any idea why happen?

this question addresses similar problem.

in short, ios automatically restarts app crashes or exits abnormally, if has background execution flag set. seems leads itunes being unable overwrite old binary new one, because it's still running.


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