The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated

Question

Im getting the error in the title when I run my app. I am running Xcode Beta 10 Version 6. The full error is:

[NetworkInfo] Descriptors query returned error: Error Domain=NSCocoaErrorDomain Code=4099 “The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.” UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.}

It gets thrown in my createTaskFromSnapshot() function, on the first line of the function.

My code:

func observeDatabase(_ tableToUpdate: UITableView) {
    taskDatabase.observe(.childAdded) { (snapshot) in
        self.handleChildAdded(snapshot: snapshot)
        tableToUpdate.reloadData()
    }
}

private func handleChildAdded(snapshot: 
    let addedTask = createTaskFromSnapshot(snapshot)
    taskList.append(addedTask)
}

private func createTaskFromSnapshot(_ snapshot: DataSnapshot) -> Task {
    let snapshotValue = snapshot.value as! Dictionary<String, String> // error is thrown here

    let taskTitle = snapshotValue["taskTitle"]!
    let newTask = Task(title: taskTitle)
  return newTask
}

What does this error mean? and why am I getting it?

The error and the code in your question seem unrelated to me. What makes you think the error is caused by this code? — Frank van Puffelen, Sep 01 '18 at 13:57
Looks unrelated to me as well. I copy and pasted your code into my app (changing Task to a String for testing) and it worked fine. As a suggestion, I would change *Dictionary* to *[String: Any]* unless you know for certain every node will contain key:value pairs of String:String — Jay, Sep 01 '18 at 14:02
Thats the line Xcode highlights as the error. Each task is stored as Dictionary — Will Taylor, Sep 01 '18 at 15:58
Good. Then issue may be that one of your values isn't a string but you are trying to force it to be. I would change it per my comment above and then either add error handling code for when its not a string or print out your values and try to spot one that its't. — Jay, Sep 02 '18 at 13:13
Anyone find a solution? Getting same error message; Launch Screen appears, then app crashes. `...Failed to create remote object proxy: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.} ...Failed to ping server after delegate was set ...Failed to create synchronous remote object proxy: [NetworkInfo] Descriptors query returned error` — James D. Schwartz, Sep 27 '18 at 03:21
My guess is that we have to wait for an update of Firebase. For now, use device instead of sim. — Yasper, Oct 07 '18 at 21:14
Does this answer your question? [Xcode 10 seems to break com.apple.commcenter.coretelephony.xpc](https://stackoverflow.com/questions/52455652/xcode-10-seems-to-break-com-apple-commcenter-coretelephony-xpc) — Blazej SLEBODA, Mar 28 '22 at 15:50

score 15 · Answer 1 · edited Jun 20 '20 at 09:12

15

The message is probably unrelated to the crash/issue.

I've had this message bother me for a while now with no way of removing it. Well I've found a way to hide this in your xcode console just run one of the following command in a terminal:

xcrun simctl spawn booted log config --mode "level:off" --subsystem com.apple.CoreTelephony

sudo log config --mode "level:off" --subsystem com.apple.CoreTelephony

you can always re-enable this at anytime by running the same command with a different level attribute`

edited Jun 20 '20 at 09:12

Community

1
1

answered Dec 10 '18 at 15:28

Lifely

1,035
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22

@Dhruv are you referencing the error mentioned in first message ? Are you using a device or simulator ? – Lifely Dec 12 '18 at 15:07
1

This is an EXCELLENT solution to the CoreTelephony log issue, which is what brought me here. Didn't know you could configure the simulator log in that manner. – Doug Boutwell Aug 23 '22 at 17:39
@DougBoutwell might I suggest you dig more into the suggest then. OsLog as since evolved greatly. There now unified logging which is great and can be implemented w/ signposts metric, reports, categories, sub-services and more. You can find more on site like avanderlee or swiftbysundell or directly at developer.apple.com – Lifely Aug 25 '22 at 01:07

score 9 · Answer 2 · answered Dec 24 '18 at 12:20

9

Try this:

1- From Xcode menu open: Product > Scheme > Edit Scheme

2- On your Environment Variables set OS_ACTIVITY_MODE = disable

answered Dec 24 '18 at 12:20

Tim Walsh

1,089
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This error comes while debugging in a simulator. Should remove in the actual device? – Urvish Modi Jan 04 '19 at 12:21
8

it disables almost everything including NSLog's too – MGY Mar 13 '19 at 07:31

score 1 · Answer 3 · answered Jan 25 '19 at 11:43

1

In my case this type of warning was generated in the case when CTTelephonyNetworkInfo() was used. As this error only generated on simulator I did like this:

#if targetEnvironment(simulator)
    return []
#else
    let networkInfo = CTTelephonyNetworkInfo()
    return [networkInfo.subscriberCellularProvider]
#endif

answered Jan 25 '19 at 11:43

Ramis

13,985
7
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100

This answer is not related to this question actually. – MGY Mar 13 '19 at 07:33

The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated

3 Answers3