This question already has answers here:
The Simulator can't be launched because it is already in use
(14 answers)
Closed 8 years ago.
In my xcode simulator no app is running,but when I try to run any app,this shows up-
"The simulator can't be launched because it is already in use"
I wanted to add a snapshot but i don't have 10 reputation
What can i do now?
Close simulator and relaunch xCode - will help
Close the simulator and quit the xCode and relaunch it you then run your application again. It will help you. Some times the latest version of xCode having this kind of problem.
Related
This question already has answers here:
Failed to Attach to Process ID Xcode
(37 answers)
Closed 4 years ago.
I just updated to Xcode 7.3.1 and my project crashes with the same error after the launch screen displays on the iOS simulator.
The error is:
"Could not attach to pid : “1712” unable to attach"
Then I tried running another project and I got:
"Could not attach to pid : “2025” unable to attach"
Any solutions?
Resetting the content and settings in the simulator worked for me. This is available on the iOS Simulator: Hardware -> Erase all Content and Settings
Kill the simulator, then re-build.
I closed Xcode.
On the simulator menu: go to Hardware -> Erase all content and settings.
Open Xcode then build and run the application.
The above simple steps worked for me.
Close Xcode & simulator
Reopen Xcode & rebuild
Above steps worked for me.
In my case Xcode 8.0 after this error,just rebuild again project it solves this problem.
There is no need for reset app content in iPhone device.
Clean the project,quit the simulator and then rebuild the app
This question already has answers here:
"Could not find Developer Disk Image"
(9 answers)
Closed 6 years ago.
I updated to iOS 10.0.1 and cannot deploy my project to the device anymore. It was working right before the update. I believe my Xcode is updated (7.3.1).
Rebooting device and computer does not fix the issue.
Also interesting, in Xcode Settings -> iOS Deployment target -> iOS 9.3 is the higher version available!
Does anybody have a solution?
Your Xcode(7.3.1) is not updated. update your Xcode here.
This question already has answers here:
Invalid Device State - Xcode/iOS Simulator error
(13 answers)
Closed 6 years ago.
Device not found message when run xcode app
Xcode version : 7.3
os version : EI Capitanenter image description here
//i.stack.imgur.com/VbYIr.png
Just plug out your phone and plug in again and wait until it process the symbol files and start displaying in the simulator list.
Also clean your code once.
this issue generally occurs just because you update xcode or made some changes in application folder.
To fix this Quit xcode and restart again or Restart your Mac
Another solution is
Clean your Project and try to re run the project
Please restart your xcode and open again that project and run it.
Its work for me.
May be Its helpful to you
Clean Your Code. Then Build And Run.
This question already has an answer here:
Seeing a guid as part of the simulator choices
(1 answer)
Closed 7 years ago.
Very confused why my Xcode 6.4 suddenly stopped showing the iOS version for the simulators. Now, it just displays some identifier for each simulator and it is very annoying and hard for me to navigate between simulators.
I also have the Xcode 7 - Beta 4 installed. But i do not think that is the reason though. Because, earlier i've had Xcode 7 Betas along with Xcode 6.x and it used to work just fine;
Wanted to find out if others have faced the problem and a possible solution.
Your help is very much appreciated.
This happens to me a lot when I have installed multiple versions or updates of Xcode. Sometimes it helps just to quit Xcode and restart the computer. If that doesn't solve it, I simply open the Devices window (Window > Devices in Xcode) and delete all the simulators. Then I recreate simulators, one by one, that I actually want. This causes Xcode to behave properly again.
This question already has answers here:
NSUserDefaults not cleared after app uninstall on simulator
(7 answers)
Closed 8 years ago.
The user defaults are not cleared on deleting an app in XCode 6 iOS 8 simulator. The user defaults are cleared only on resetting the simulator. In iOS 7 simulator, this is not a problem at all. Any other solution rather than resetting the simulator?
Yes, i too observed that in iOS 8 simulator ...do this for clearing NSUserDefaults data.
iOS Simulator ---> Reset Content and Settings… ---> Ok
This is a bug in the iOS 8.0 simulator runtime as mentioned in multiple other posts here on Stack Overflow, Apple's Dev Forums, and the Xcode 6 Release Notes which indicate that the issue is fixed in the iOS 8.1 simulator runtime.
Deleting an app from iOS Simulator now deletes user defaults as
expected. (18307910)
Clear the /Library/Developer/Xcode/DerivedData folder.
Also reset the simulator. And clean and build the Xcode.
Hope this may help you.