Related
I needed to run a long test to see what's making my app crash. So I set the Mac to not sleep and I ran the app on the iPhone connected via USB overnight. In the morning, I found that the iPhone had disconnected during the night.
I looked for in Console and Xcode for device logs and I found there were none at all on the phone, therefore no history of what happened during the night. Logs began after the moment I reconnected the phone to the Mac.
I downloaded the app container and found no useful evidence of what happened.
iOS is 12.4 and Xcode is 10.3.
What can be done to ensure there is some evidence of what caused the crash? Other than filling the app with fprintf's going to a custom log file. Also I am using Fabric.
Do the same thing again, but this time with a camera looking at the PC. Maybe you can grab some evidence from the recording next day. Modern solutions for modern problems.
Go to Settings -> Touch ID and Passcode
Check if USB Accessories has been turned off. Your device may have disconnected then failed to reconnect due to this feature restricting access to the device if it is disconnected for more than an hour.
Change this setting, replace your cable or use a different USB port then try running it again.
I'm using Xcode 10.1, and I don't have a checkbox whether I want to connect through network or not on my device page (which was there in Xcode 9 and Xcode 10 beta). Search "connect via network xcode" on google images if you don't know what I mean.
However, I must debug the offline flow of my app (which is written in React-Native btw). Not just no-internet-connection, but turning off wifi and mobile-data, which will trigger a status change. By using the developer settings of the iPhone, I can make every call fail (100% loss), but cannot change the internet-status of the phone.
So I want the debugger to stay connected and either be able to:
debug the old-school way through the cable (if I turn off internet now, I get a red error screen and nothing is possible anymore), so I can disable wifi and mobile-data,
or simulating that status change on the phone.
Btw, I cannot use a simulator, since the app requires Bluetooth.
Thanks in advance!
Edit:
The checkbox is not there for older iPhone devices. With iPhone 7s, I do see the checkbox "connect via network". But enabling or disabling does not change the fact that your iPhone needs internet to debug. If I disable internet on the phone I get the following error:
Ok, I've found the problem. We are testing on a iPhone5, which is no longer officially supported by Apple. Which means that Apple has decided to cut features for iPhone5 so you would buy a new one (wonderful strategy =/). Hence debugging with a cable is no longer supported on iPhone5.
We tested with a iPhone6 from a colleague, and everything works fine.
Edit:
Altough the checkbox is there, and I can disable wifi for connection... The moment I turn off internet on the phone, the app crashes and says: "Runtime is not ready for debugging: make sure packager runtime is running"... so no solution yet...
For some reason the wireless debugging does not work here. Here is what I've done:
Using newest Xcode 9
Using newest iOS 11 on my iPhone 7+
Both devices are in the same network
Connected the iPhone via Lightning, selected "Connect via Network" in the Devices & Simulator menu
Run an app on the iPhone while still connected via Lightning - everything works
But as soon as I unplug the phone, Xcode is no longer able to connect with the phone. I can ping the phone with the Mac, but even the "connect via ip" option in Xcode does not work.
Anybody got tips on how to get this working?
I had the same issue, but it was intermittent - i.e. sometimes the globe would not appear next to the phone name in Xcode Devices and Simulators window and when the phone was disconnected from the lighting cable, I could not debug to it from Xcode. My fix was much simpler, though - I just turned WiFi on and off both on the Mac and on the phone. After the devices reconnected to the network wireless debugging was available again. This seems to be an issue with the network communication (regardless whether the device can be pinged or not).
Make sure System Preferences->Internet Sharing is enabled using USB ports:
I was able to find a solution to this on another stack overflow question:
How do you perform wireless debugging in Xcode 9 with iOS 11, Apple TV 4K, etc?.
You can also check this answer: "Connect via network" wireless debugging not working Xcode 9
Near the bottom, from "IOS DEV". Briefly, the solution ended up to be to unpair my phone, disconnect and re-pair. After that Xcode automatically added it with the globe. As an FYI, I was able to ping my iPhone using the network utility prior to the un-paring but was still unable to get the phone to connect. good luck.
Restarting xcode is the only thing that fixed this intermittent connectivity problem for me.
I realized this can also happen if my Mac is connected to a VPN. I had to:
Kill the VPN connection
Turn the computer's wifi off and back on
Open Devices and Simulators
Plug the device in and the globe icon should appear.
Unplug the device and make sure the globe icon is still there.
Run the app via network!
Wireless debugging mysteriously stopped working for me until I turned off my VPN client. I now believe that I had the VPN turned off when I was trying it out the first time, but then the VPN auto-connected after my computer restarted sometime later.
Wireless debugging was recently added as a feature in Xcode 9, iOS 11, and tvOS 11. Apple TV 4K doesn't have a USB port, so it requires wireless debugging. How do you perform this wireless debugging in Xcode?
Set up a device for network debugging
from help.apple.com
Debug your app running on an iOS or tvOS device over a Wi-Fi or other network connection.
Steps to set up iPhone, iPad, or iPod touch
Check that your device has a passcode and add one if it doesn't. Your device must have a passcode to enable remote debugging
The Mac and the iPhone/iPad need to be on the same network to use wireless debugging.
Next, in Xcode
Choose Window > Devices and Simulators, then in the window that appears, click Devices.
Connect your device to your Mac with a Lightning cable.
In the left column, select the device, and in the detail area, select Connect via network.
Xcode pairs with your device. If Xcode can connect with the device using a network, a network icon appears next to the device in the left column.
Disconnect your device.
Now you are ready for debugging over the network.
Sometimes it doesn't work. You might need to restart the device or network connection.
Note: Network debugging requires Xcode 9.0 or later running on macOS 10.12.4 or later, and on the device, requires iOS 11.0 or later, or tvOS 11.0 or later.
Steps to set up Apple TV:
Make sure your Mac and your Apple TV are on the same network.
Choose Window > Devices and Simulators, then in the window that appears, click Devices.
On your Apple TV, open the Settings app and choose Remotes and Devices > Remote App and Devices.
The Apple TV searches for possible devices including the Mac. (If you have any firewall or Internet security, disable/turn it off to allow searching.)
On your Mac, select the Apple TV in the Devices pane. The pane for the Apple TV is displayed and shows the current status of the connection request.
Enter the verification code displayed on your AppleTV into the Device window pane for the device and click Connect.
Xcode sets up the Apple TV for wireless debugging and pairs with the device.
I have tried using Xcode Devices window's Connect via network options. but I am unable to see the "Connected over the network" icon next to the device name. also as soon as remove the USB the "Connect via network" option disappeared. also, the device name appears under the disconnected device list.
But using the "Connect via IP Address..." option, I am able to connect.
Right-click on the device name(Under Disconnected list) and choose "Connect via IP Address...." option.
Type the IP address of the device and chose Connect. (you can find through mobile device Settings > Wi-Fi > Choose the wifi name)
If you have completed all steps given by Surjeet and still not getting network connection icon then follow below steps:
Unpair Device using right click on the device from the Connected section.
Reconnect the device.
Click on "+" button from the end of the lefthand side of the popup.
Select the device and click on next button
Click on Trust and passcode(if available) from the device.
Click on Done button.
Now, click on connect via network.
Now you can see the network connection icon after the device name. Enjoy!
Prerequisite
Your Mac Machine should have at least Mac OSX 10.12.4 or later
Your iOS device should have at least iOS 11.0 or later
Both devices should be on same network.
Steps to Activate
Plug your iOS device with Mac machine from cable.
Open Xcode then from top menu Window -> Devices and Simulators
Chose Devices segment and chose your desired Device from left device list.
On right side you can see open Connect via network, enable this option as shown in attached image.
After few seconds you can see network sign in front of you device.
Unplug your device and use debugging as you're using normally.
Thanks
If after following the steps as described by Surjeet you still can't connect, try turning your computer's Wi-Fi off and on again. This worked for me.
Also, be sure to trust the developer certificate on the iOS device (Settings - General - Profiles & Device Management - Developer App).
Network debugging requires Xcode 9.0 or later running on macOS 10.12.4
or later, and on the device, requires iOS 11.0 or later, or tvOS 11.0
or later.
iPhone
iOS 11 won't be available for 32bit devices, i.e. iPhone 5 and iPhone 5c and below. The first 64bit iPhone is 5s.
iPad
iPad mini 2 will be the oldest iPad with iOS 11 support.
iPod
iPod needs to be an iPod 6 to be able to run iOS.
If you use your devices not only for developing but also for production, be warned that a beta OS is not for the faint hearted ;-)
In the new Xcode9-beta, we can use wireless debugging as said by Apple:
Cut the Cord
Choose any of your iOS or tvOS devices on the local network to install, run, and debug your apps – without a USB cord plugged into your Mac. Simply click the ‘Connect via Network’ checkbox the first time you use a new iOS device, and that device will be available over the network from that point forward. Wireless development also works in other apps, including Instruments, Accessibility Inspector, Quicktime Player, and Console.
Try this!
If facing disconnection issues, try this:
Workaround: Enable airplane mode on your device for 10 seconds and then disable airplane mode to re-establish your connection
I just talked to some Xcode engineers at WWDC and the auto discovery of iDevices is still a little buggy. Also sometimes your phone is not correctly broadcasting. Switching your device on and off can help.
There are a few workarounds/fallbacks:
You can check if your phone is broadcasting with Bonjour Browser (www.tildesoft.com). Look if your wifi address is listed under the service called '_apple-mobdev2._tcp. - 215' (you can find your wifi address here: settings > general > about > wifi address.
As a fallback you can connect to your device by manually entering the IP address (right click on your devices in the Devices window).
However this IP address will be persisted, so if you change networks you'll need to reset this. That option is not available in Xcode yet, but you can do it via the terminal with the following command:
defaults read com.apple.dt.Xcode | grep IDEIDS
This will print an identifier which you need to use in the next command:
defaults delete com.apple.dt.Xcode <identifier>
Now the ip address is cleared and you can enter a new one.
The last option is to create a computer-to-computer network. This works fine, but logically you won't have internet access then.
Try this:
Plug your iOS device into your Mac using a lightning cable. You may need to select to Trust This Computer on your device.
Open Xcode and go to Window > Devices and Simulators.
Select your device and then select the Connect via network checkbox to pair your device.
Run your project after removing your Lighting cable.
You can open Xcode Help -> Run and debug -> Network debugging for more info. Hope it helps.
i followed all the suggested steps, in particular the ones provided from ios_dev but my iPhone was not recognized from Xcode and i was not able to debug over WiFi. Right click on the left panel over my iDevice in "Devices and Simulators" window, then "Connect via IP Address...", inserted the iPhone IP and now it correctly works
For wireless debugging, Mac system and iPhone/Device should be on same network.
For making on same network you can do as -
Either you can start hotspot on Mac & connect that on iPhone/Device or vice versa.
On Mac
OR
On iPhone-
Xcode ► Window ► Devices and Simulators ► select devices Tab ► click connect
via network
https://help.apple.com/xcode/mac/9.0/index.html?localePath=en.lproj#/devbc48d1bad
My problem was about network SSID broadcasting.
I've tried all the solutions above but still couldn't connect my device, there was no 'globe' icon for my device at all. Then I found that for some reason my network had turned its SSID broadcasting off(tho I could still connect the network by inputing the SSID manually). Once I turned the SSID broadcasting on, I could connect my device via 'Connect via IP Address...'.
I tried all answers but nothing worked for me. I ended up connecting to different WiFi network then I was able to debug wirelessly.
I have no clue why it didn't work with the old network
The only thing that worked for me was to connect my phone to my MacBook using Bluetooth. (I did this after first pairing my phone with Xcode while connected via cable per ios_dev's answer above.)
On my phone, I went to Settings > Bluetooth and tapped my MacBook's name under "MY DEVICES" to connect.
I then went to Xcode > Devices and Simulators, selected my phone and checked "Connect via network". After a few seconds, the globe icon appeared next to my phone and I could run and debug my app on my phone.
This worked even when my MacBook was connected to a WiFi network and my phone was using LTE. The only downside is that it was quite slow installing the app to the phone.
Xcode 9 - For detailed info goto Help -> Pair a wireless device with Xcode (iOS, tvOS)
The only way I could get it to work is if my Mac and my iPhone were on different networks. I have a main DSL modem call it network1 and a second network2 setup us an access point. They have SSIDs network1 and network2. If the phone was on network1 and the mac on network2 it would work, or vice versa. But if both were on network1 or both were on network2, it would NOT work.
Enable Internet Sharing using USB ports:
LOL, I was doing all the steps here - I ended up doing the unpairing/repairing steps from the "given by Surjeet" answer. It didn't work, and then I noticed that when I clicked the "connect via network" button, the same yellow box would pop up that pops up when you repair, saying "busy" - I got frustrated and just started hammering the "connect via network" button, clicking it quickly for probably like 15 - 20 clicks - it started spazzing out, but eventually landed on being able to connect to the network. Before that worked, I also shut my wifi off and turned it on again, as suggested by one of these answers, but clicking the "connect via network" button really fast did the trick...LOL
Also, before I hammered the button, I linked the device support folders, although I'm not sure if it did anything:
open the terminal
cd
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
ln -s 13.3 13.4
ls -l 13.4
restart Xcode and retry run on device
Said to do it here - https://forums.developer.apple.com/thread/126940 - I edited the folder version in my comment to adjust to the latest version of iOS 13.4.
EDIT
I believe I figured out what my problem was, I had to stop my Little Snitch network filter. Also, after I was able to connect by hammering the button, the "connect via IP address" option appeared in the dropdown when you right click on the device in the devices manager in xcode, it wasn't there before I was able to connect ultra-hacky style the first time. If I connect, and then turn my network filter on, it disconnects my phone.
Step 1 : First time connect phone with Cable
Step 2 : Go to Organizer & Devices
Step 3 : Tick Connect as Network
Now simple trick which works everytime.
Step 4 : Turn on hotspot on iphone
Step 5 : Connect your mac with that hotspot.
Step 6 : Now run the code.
This will always work.
Wireless debugging was recently added as a feature in Xcode 9, iOS 11, and tvOS 11. Apple TV 4K doesn't have a USB port, so it requires wireless debugging. How do you perform this wireless debugging in Xcode?
Set up a device for network debugging
from help.apple.com
Debug your app running on an iOS or tvOS device over a Wi-Fi or other network connection.
Steps to set up iPhone, iPad, or iPod touch
Check that your device has a passcode and add one if it doesn't. Your device must have a passcode to enable remote debugging
The Mac and the iPhone/iPad need to be on the same network to use wireless debugging.
Next, in Xcode
Choose Window > Devices and Simulators, then in the window that appears, click Devices.
Connect your device to your Mac with a Lightning cable.
In the left column, select the device, and in the detail area, select Connect via network.
Xcode pairs with your device. If Xcode can connect with the device using a network, a network icon appears next to the device in the left column.
Disconnect your device.
Now you are ready for debugging over the network.
Sometimes it doesn't work. You might need to restart the device or network connection.
Note: Network debugging requires Xcode 9.0 or later running on macOS 10.12.4 or later, and on the device, requires iOS 11.0 or later, or tvOS 11.0 or later.
Steps to set up Apple TV:
Make sure your Mac and your Apple TV are on the same network.
Choose Window > Devices and Simulators, then in the window that appears, click Devices.
On your Apple TV, open the Settings app and choose Remotes and Devices > Remote App and Devices.
The Apple TV searches for possible devices including the Mac. (If you have any firewall or Internet security, disable/turn it off to allow searching.)
On your Mac, select the Apple TV in the Devices pane. The pane for the Apple TV is displayed and shows the current status of the connection request.
Enter the verification code displayed on your AppleTV into the Device window pane for the device and click Connect.
Xcode sets up the Apple TV for wireless debugging and pairs with the device.
I have tried using Xcode Devices window's Connect via network options. but I am unable to see the "Connected over the network" icon next to the device name. also as soon as remove the USB the "Connect via network" option disappeared. also, the device name appears under the disconnected device list.
But using the "Connect via IP Address..." option, I am able to connect.
Right-click on the device name(Under Disconnected list) and choose "Connect via IP Address...." option.
Type the IP address of the device and chose Connect. (you can find through mobile device Settings > Wi-Fi > Choose the wifi name)
If you have completed all steps given by Surjeet and still not getting network connection icon then follow below steps:
Unpair Device using right click on the device from the Connected section.
Reconnect the device.
Click on "+" button from the end of the lefthand side of the popup.
Select the device and click on next button
Click on Trust and passcode(if available) from the device.
Click on Done button.
Now, click on connect via network.
Now you can see the network connection icon after the device name. Enjoy!
Prerequisite
Your Mac Machine should have at least Mac OSX 10.12.4 or later
Your iOS device should have at least iOS 11.0 or later
Both devices should be on same network.
Steps to Activate
Plug your iOS device with Mac machine from cable.
Open Xcode then from top menu Window -> Devices and Simulators
Chose Devices segment and chose your desired Device from left device list.
On right side you can see open Connect via network, enable this option as shown in attached image.
After few seconds you can see network sign in front of you device.
Unplug your device and use debugging as you're using normally.
Thanks
If after following the steps as described by Surjeet you still can't connect, try turning your computer's Wi-Fi off and on again. This worked for me.
Also, be sure to trust the developer certificate on the iOS device (Settings - General - Profiles & Device Management - Developer App).
Network debugging requires Xcode 9.0 or later running on macOS 10.12.4
or later, and on the device, requires iOS 11.0 or later, or tvOS 11.0
or later.
iPhone
iOS 11 won't be available for 32bit devices, i.e. iPhone 5 and iPhone 5c and below. The first 64bit iPhone is 5s.
iPad
iPad mini 2 will be the oldest iPad with iOS 11 support.
iPod
iPod needs to be an iPod 6 to be able to run iOS.
If you use your devices not only for developing but also for production, be warned that a beta OS is not for the faint hearted ;-)
In the new Xcode9-beta, we can use wireless debugging as said by Apple:
Cut the Cord
Choose any of your iOS or tvOS devices on the local network to install, run, and debug your apps – without a USB cord plugged into your Mac. Simply click the ‘Connect via Network’ checkbox the first time you use a new iOS device, and that device will be available over the network from that point forward. Wireless development also works in other apps, including Instruments, Accessibility Inspector, Quicktime Player, and Console.
Try this!
If facing disconnection issues, try this:
Workaround: Enable airplane mode on your device for 10 seconds and then disable airplane mode to re-establish your connection
I just talked to some Xcode engineers at WWDC and the auto discovery of iDevices is still a little buggy. Also sometimes your phone is not correctly broadcasting. Switching your device on and off can help.
There are a few workarounds/fallbacks:
You can check if your phone is broadcasting with Bonjour Browser (www.tildesoft.com). Look if your wifi address is listed under the service called '_apple-mobdev2._tcp. - 215' (you can find your wifi address here: settings > general > about > wifi address.
As a fallback you can connect to your device by manually entering the IP address (right click on your devices in the Devices window).
However this IP address will be persisted, so if you change networks you'll need to reset this. That option is not available in Xcode yet, but you can do it via the terminal with the following command:
defaults read com.apple.dt.Xcode | grep IDEIDS
This will print an identifier which you need to use in the next command:
defaults delete com.apple.dt.Xcode <identifier>
Now the ip address is cleared and you can enter a new one.
The last option is to create a computer-to-computer network. This works fine, but logically you won't have internet access then.
Try this:
Plug your iOS device into your Mac using a lightning cable. You may need to select to Trust This Computer on your device.
Open Xcode and go to Window > Devices and Simulators.
Select your device and then select the Connect via network checkbox to pair your device.
Run your project after removing your Lighting cable.
You can open Xcode Help -> Run and debug -> Network debugging for more info. Hope it helps.
i followed all the suggested steps, in particular the ones provided from ios_dev but my iPhone was not recognized from Xcode and i was not able to debug over WiFi. Right click on the left panel over my iDevice in "Devices and Simulators" window, then "Connect via IP Address...", inserted the iPhone IP and now it correctly works
For wireless debugging, Mac system and iPhone/Device should be on same network.
For making on same network you can do as -
Either you can start hotspot on Mac & connect that on iPhone/Device or vice versa.
On Mac
OR
On iPhone-
Xcode ► Window ► Devices and Simulators ► select devices Tab ► click connect
via network
https://help.apple.com/xcode/mac/9.0/index.html?localePath=en.lproj#/devbc48d1bad
My problem was about network SSID broadcasting.
I've tried all the solutions above but still couldn't connect my device, there was no 'globe' icon for my device at all. Then I found that for some reason my network had turned its SSID broadcasting off(tho I could still connect the network by inputing the SSID manually). Once I turned the SSID broadcasting on, I could connect my device via 'Connect via IP Address...'.
I tried all answers but nothing worked for me. I ended up connecting to different WiFi network then I was able to debug wirelessly.
I have no clue why it didn't work with the old network
The only thing that worked for me was to connect my phone to my MacBook using Bluetooth. (I did this after first pairing my phone with Xcode while connected via cable per ios_dev's answer above.)
On my phone, I went to Settings > Bluetooth and tapped my MacBook's name under "MY DEVICES" to connect.
I then went to Xcode > Devices and Simulators, selected my phone and checked "Connect via network". After a few seconds, the globe icon appeared next to my phone and I could run and debug my app on my phone.
This worked even when my MacBook was connected to a WiFi network and my phone was using LTE. The only downside is that it was quite slow installing the app to the phone.
Xcode 9 - For detailed info goto Help -> Pair a wireless device with Xcode (iOS, tvOS)
The only way I could get it to work is if my Mac and my iPhone were on different networks. I have a main DSL modem call it network1 and a second network2 setup us an access point. They have SSIDs network1 and network2. If the phone was on network1 and the mac on network2 it would work, or vice versa. But if both were on network1 or both were on network2, it would NOT work.
Enable Internet Sharing using USB ports:
LOL, I was doing all the steps here - I ended up doing the unpairing/repairing steps from the "given by Surjeet" answer. It didn't work, and then I noticed that when I clicked the "connect via network" button, the same yellow box would pop up that pops up when you repair, saying "busy" - I got frustrated and just started hammering the "connect via network" button, clicking it quickly for probably like 15 - 20 clicks - it started spazzing out, but eventually landed on being able to connect to the network. Before that worked, I also shut my wifi off and turned it on again, as suggested by one of these answers, but clicking the "connect via network" button really fast did the trick...LOL
Also, before I hammered the button, I linked the device support folders, although I'm not sure if it did anything:
open the terminal
cd
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
ln -s 13.3 13.4
ls -l 13.4
restart Xcode and retry run on device
Said to do it here - https://forums.developer.apple.com/thread/126940 - I edited the folder version in my comment to adjust to the latest version of iOS 13.4.
EDIT
I believe I figured out what my problem was, I had to stop my Little Snitch network filter. Also, after I was able to connect by hammering the button, the "connect via IP address" option appeared in the dropdown when you right click on the device in the devices manager in xcode, it wasn't there before I was able to connect ultra-hacky style the first time. If I connect, and then turn my network filter on, it disconnects my phone.
Step 1 : First time connect phone with Cable
Step 2 : Go to Organizer & Devices
Step 3 : Tick Connect as Network
Now simple trick which works everytime.
Step 4 : Turn on hotspot on iphone
Step 5 : Connect your mac with that hotspot.
Step 6 : Now run the code.
This will always work.