ERROR - /SourceCache/ExternalAccessory/ExternalAccessory-213.3/EASession.m:-[EASession dealloc]

発生しているエラー
2013-08-28 14:04:20.879 UNITE-POS[365:907] ERROR - opening session failed
2013-08-28 14:04:20.881 UNITE-POS[365:907] ERROR - /SourceCache/ExternalAccessory/ExternalAccessory-213.3/EASession.m:-[EASession dealloc]
- 137 unable to close session for _accessory=0x20887b40 and sessionID=65536
2013-12-03 11:51:05.935 UNITE-POS[1575:60b] ERROR - opening session failed
2013-12-03 11:51:05.936 UNITE-POS[1575:60b] ERROR - /SourceCache/ExternalAccessory/ExternalAccessory-242/EASession.m:-[EASession dealloc]
- 139 unable to close session for _accessory=0x15d9dea0 and sessionID=65536
参考にしたマニュアル、サンプル
https://developer.apple.com/library/ios/samplecode/EADemo/Introduction/Intro.html

修正例
  [[EAAccessoryManager sharedAccessoryManager] registerForLocalNotifications];
  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(_accessoryDidConnect:)
                                               name:EAAccessoryDidConnectNotification
                                             object:nil];
  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(_accessoryDidDisconnect:)
                                               name:EAAccessoryDidDisconnectNotification
                                             object:nil];

- (void)_accessoryDidDisconnect:(NSNotification *)notification
{
 [_service closeSession];        
 NSLog(@"▼ScannerPlugin.m DidDisconnect -> close");
 CDVPluginResult *result;
 result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:@"_accessoryDidDisconnect"];
 [self writeJavascript:[result toSuccessCallbackString:_callbackEventId]];
}
↓マニュアルを見て修正しました。
- (void)_accessoryDidDisconnect:(NSNotification *)notification
{
    EAAccessory *disconnectedAccessory =  [[notification userInfo] objectForKey:EAAccessoryKey];
   
    if ([disconnectedAccessory connectionID] == [[_service accessory] connectionID])
    {
        [_service closeSession];
        NSLog(@"▼ScannerPlugin.m DidDisconnect -> close");
        CDVPluginResult *result;
        result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:@"_accessoryDidDisconnect"];
        [self writeJavascript:[result toSuccessCallbackString:_callbackEventId]];
       
    }
}

補足

bluetoohデバイスが２つ以上あることを前提でコードを組まないといけませんね。

Xamarin、PhoneGap（Cordova）、Titaniumをやってきているが、以外なところでハマった。