I'm developing a watchOS 6 standalone app with Xcode and Objective-C. This app should connect to a TCP server. If I run the app on the simulator it works, if I run it on my physical Apple Watch Series 4 I get this error: The operation couldn’t be completed. (kCFErrorDomainCFNetwork error -72000).Here is the code:InterfaceController.h#import <WatchKit/WatchKit.h> #import <Foundation/Foundation.h> @interface InterfaceController : WKInterfaceController <NSStreamDelegate> { CFReadStreamRef readStream; CFWriteStreamRef writeStream; NSInputStream *inputStream; NSOutputStream *outputStream; NSMutableArray *messages; } @property (weak, nonatomic) IBOutlet WKInterfaceLabel *connectedLabel; @property (weak, nonatomic) IBOutlet WKInterfaceLabel *dataReceivedLabel; @endInterfaceController.m#import "InterfaceController.h" @interface InterfaceController () { NSString* dataToSend; // Server Info NSString* ipAddress; NSString* port; } @end @implementation InterfaceController @synthesize connectedLabel; @synthesize dataReceivedLabel; - (void)awakeWithContext:(id)context { [super awakeWithContext:context]; ipAddress = @"192.168.0.68"; port = @"12345"; dataToSend = @"Hello TCP!"; [connectedLabel setText:@"Disconnected"]; } - (IBAction)sendMessage { NSString *response = [NSString stringWithFormat:@"msg:%@", dataToSend]; NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]]; [outputStream write:[data bytes] maxLength:[data length]]; } - (void) messageReceived:(NSString *)message { [messages addObject:message]; [dataReceivedLabel setText:message]; NSLog(@"%@", message); } - (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent { NSLog(@"stream event %lu", (unsigned long)streamEvent); switch (streamEvent) { case NSStreamEventOpenCompleted: NSLog(@"Stream opened"); connectedLabel.text = @"Connected"; break; case NSStreamEventHasBytesAvailable: if (theStream == inputStream) { uint8_t buffer[1024]; NSInteger len; while ([inputStream hasBytesAvailable]) { len = [inputStream read:buffer maxLength:sizeof(buffer)]; if (len > 0) { NSString *output = [[NSString alloc] initWithBytes:buffer length:len encoding:NSASCIIStringEncoding]; if (nil != output) { NSLog(@"server said: %@", output); [self messageReceived:output]; } } } } break; case NSStreamEventHasSpaceAvailable: NSLog(@"Stream has space available now"); break; case NSStreamEventErrorOccurred: NSLog(@"%@",[theStream streamError].localizedDescription); break; case NSStreamEventEndEncountered: [theStream close]; [theStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; connectedLabel.text = @"Disconnected"; NSLog(@"close stream"); break; default: NSLog(@"Unknown event"); } } - (IBAction)connectToServer { NSLog(@"Setting up connection to %@ : %i", ipAddress, [port intValue]); CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault, (__bridge CFStringRef) ipAddress, [port intValue], &readStream, &writeStream); messages = [[NSMutableArray alloc] init]; [self open]; } - (IBAction)disconnect { [self close]; } - (void)open { NSLog(@"Opening streams."); outputStream = (__bridge NSOutputStream *)writeStream; inputStream = (__bridge NSInputStream *)readStream; [outputStream setDelegate:self]; [inputStream setDelegate:self]; [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [outputStream open]; [inputStream open]; [connectedLabel setText:@"Connected"]; } - (void)close { NSLog(@"Closing streams."); [inputStream close]; [outputStream close]; [inputStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [outputStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [inputStream setDelegate:nil]; [outputStream setDelegate:nil]; inputStream = nil; outputStream = nil; [connectedLabel setText:@"Disconnected"]; } @end

Hi,Is it possibile to make a watchOS 6 app that establish a Socket TCP Connection?Like what i did in iOS by using the CocoaAsyncSocket networking library.

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