StoreKit purchase failing - com.apple.accessibility.gax.backboard

Question

I'm working on custom StoreKit handler class for buying an in-app purchase.

I'm having strange error, when trying to purchase something. Looks like some Apple private stuff is involved. The receipts in SKPaymentQueue's transactions are not valid. What am I doing wrong?

   2014-12-19 20:30:59.286 testapp[2185:624771] |AXIPC|warning| Could not send simple message (com.apple.accessibility.gax.backboard). Port:27139. Error:268435460 (0x10000004). 
<AXIPCMessage: 0x1740655c0>. Client port: 0. Key: 13012. Payload: {
    GAXIPCPayloadKeyMessageServiceName = "com.apple.accessibility.gax.client";
    GAXIPCPayloadKeyPid = 2185;
}
2014-12-19 20:30:59.289 testapp[2185:624771] |error| could not send message to backboard: notify backboard frontmost app did change (Error Domain=AXIPC Code=0 "The operation couldn’t be completed. Could not send simple message (com.apple.accessibility.gax.backboard). Port:27139. Error:268435460 (0x10000004). 
<AXIPCMessage: 0x1740655c0>. Client port: 0. Key: 13012. Payload: {
    GAXIPCPayloadKeyMessageServiceName = "com.apple.accessibility.gax.client";
    GAXIPCPayloadKeyPid = 2185;
}" UserInfo=0x174064d00 {NSLocalizedFailureReason=Could not send simple message (com.apple.accessibility.gax.backboard). Port:27139. Error:268435460 (0x10000004). 
<AXIPCMessage: 0x1740655c0>. Client port: 0. Key: 13012. Payload: {
    GAXIPCPayloadKeyMessageServiceName = "com.apple.accessibility.gax.client";
    GAXIPCPayloadKeyPid = 2185;
}})
2014-12-19 20:31:11.742 testapp[2185:624771] |AXIPC|warning| Could not send simple message (com.apple.accessibility.gax.backboard). Port:27139. Error:268435460 (0x10000004). 
<AXIPCMessage: 0x17026cec0>. Client port: 0. Key: 13012. Payload: {
    GAXIPCPayloadKeyMessageServiceName = "com.apple.accessibility.gax.client";
    GAXIPCPayloadKeyPid = 2185;
}
2014-12-19 20:31:11.743 testapp[2185:624771] |error| could not send message to backboard: notify backboard frontmost app did change (Error Domain=AXIPC Code=0 "The operation couldn’t be completed. Could not send simple message (com.apple.accessibility.gax.backboard). Port:27139. Error:268435460 (0x10000004). 
<AXIPCMessage: 0x17026cec0>. Client port: 0. Key: 13012. Payload: {
    GAXIPCPayloadKeyMessageServiceName = "com.apple.accessibility.gax.client";
    GAXIPCPayloadKeyPid = 2185;
}" UserInfo=0x170077dc0 {NSLocalizedFailureReason=Could not send simple message (com.apple.accessibility.gax.backboard). Port:27139. Error:268435460 (0x10000004). 
<AXIPCMessage: 0x17026cec0>. Client port: 0. Key: 13012. Payload: {
    GAXIPCPayloadKeyMessageServiceName = "com.apple.accessibility.gax.client";
    GAXIPCPayloadKeyPid = 2185;
}})

Answer 1

Im having the same problem here. But my purchases are going trough, and everything works fine, except these annoying errors.

Here its happening occasionally, does it happend every time for you, and doesnt your purchases go trough ?

The stuff im testing with it has already been bought, so i get the message if i want to restore the purchase. I even get these error messages sometimes when i press no to cancel the purchase.