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ERROR ITMS-90717: “Invalid App Store Icon. The App Store Icon in the asset catalog in ‘’ can’t be transparent nor contain an alpha channel.”



It may be causes for 2 reasons – If image is transparent or if alpha channel¬† .   Solution for transparent :¬† Simply remove transparent or convert .png image to .jpg/.jpeg format . Solution for alpha channel :   Copy…

IOS – Main Thread Checker: UI API called on a background thread: -[UIApplication delegate] PID: 902, TID: 13120, Thread name: (none), Queue name: NSOperationQueue 0x604000037a20 (QOS: UNSPECIFIED), QoS: 0 Backtrace:



Solution : use DispatchQueue.main.async { // Correct }     Updating UI from a Completion Handler Long-running tasks such as networking are often executed in the background, and provide a completion handler to signal completion. Attempting to read or update…