Error: __tcp_connection_write_eof_block_invoke Record received callback error - iOS 10

Question

When sending an XML database API request to the ONVIF camera. It worked fine on an ios 9 device, but gave a “500 Internal Error” on iOS 10.

The Xcode 8 console displays the following error messages:

2016-09-30 12:39:51.295419 VCPlugin[278:10183] [] nw_socket_get_input_frames recvmsg(fd 12, 1024 bytes): [54] Connection reset by peer 2016-09-30 12:39:51.301221 VCPlugin[278:10228] [] nw_socket_write_close shutdown(12, SHUT_WR): [57] Socket is not connected 2016-09-30 12:39:51.301307 VCPlugin[278:10228] [] nw_endpoint_flow_service_writes [3 10.107.2.153:80 ready socket-flow (satisfied)] Write request has 0 frame count, 0 byte count 2016-09-30 12:39:51.301903 VCPlugin[278:10185] [] __tcp_connection_write_eof_block_invoke Write close callback received error: [89] Operation canceled 2016-09-30 12:41:13.492053 VCPlugin[278:10287] [] __tcp_connection_write_eof_block_invoke Write close callback received error: [57] Socket is not connected 2016-09-30 12:42:51.278617 VCPlugin[278:10228] [] __tcp_connection_write_eof_block_invoke Write close callback received error: [22] Invalid argument 

If the user retries and retries three to four times, then after receiving a valid xml response from the server.

I do not know this behavior in iOS 10.

This is the code I wrote to request the XML API for the request:

 NSMutableURLRequest * urlRequest = [NSMutableURLRequest requestWithURL:url]; [urlRequest setHTTPMethod:@"POST"]; [urlRequest setHTTPBody:body]; [urlRequest setValue: @"application/soap+xml" forHTTPHeaderField:@"Content-Type"]; [urlRequest setValue: @"application/soap+xml" forHTTPHeaderField:@"Accept"]; NSURLSessionDataTask * dataTask = [defaultSession dataTaskWithRequest:urlRequest completionHandler:^(NSData *data1, NSURLResponse *response, NSError *error) { NSLog(@"Response:%@ %@\n", response, error); if(error == nil) { NSString * text = [[NSString alloc] initWithData: data1 encoding: NSUTF8StringEncoding]; NSLog(@"Data = %@",text); } }]; [dataTask resume]; 

Also read the Apple Form , but don't get the solution.

Answer 1

try this code:

I have the same problem, but there is something you can do,

1) Go to Product → Scheme → Edit Scheme
2) Run the section on the left, select the “Argument” tab and “Environment Variable”, put this.

OS_ACTIVITY_MODE for value: disable.

See screenshot below for more information.

This will save you messages in the console.

But I'm still PLBuildVersion with PLBuildVersion implemented in both ...

Hope this helps you!