im doing the iOS Dev Course from Angela Yu right now on Udemy. If i Clone those initial builded Repositories from GitHub, i got many problems with my Simulator on Mac and on my iPhone 12 as well. (using Mac mini m1 with MacOS Monterey 12.4 and xCode 13.4.1).
i write some code which runs fine but if i want to start the build, xCode says "build succeeded" and then nothing happens anymore. Sometimes it just starts fine - seems to be random.
What i've tried:
Reboot Mac
Restart xCode
erase and reset Simulator
choose new Scheme with selected app and set target iOS to 15.4 (and 15.5)
killed all Simulator processes at Task Manager
deleted all Simulator builds and created new ones
reinstalled xCode entirely
tested xCode 13.2.1
yesterday it worked fine ( but there was Projects which we created from scratch ) think it is a problem with repositories which are created 2-3 years ago.
i didn't get any Error Messages... simply "Build Succeeded" -> nothing happens.
Any Ideas? Would Love to complete the Course but it's really frustrating without testing possibilities.
greets
I have been building mac app on my mac mini and it always worked well but today i faced this error, searched a lot but no luck.
Message from debugger: unable to attach
What i tried:
Clear derived data
Quit Xcode
Restart machine
installation directory set to blank and also to /Applications
Tried Skip Install No / Yes
Using developer Signing certs
M using only Developer certificates and not provisioning profile to sign my cocoa app
Xcode 8.2
OSX 10.12.1
Please help :)
This is what fixed it for me, perhaps it will help others but I do realize the question was for 8.2. I had it set to Xcode 9 "New Build System" disabling this and switching to "Standard Build System" in the Project Settings under the File Menu. I had tried all the other things like killing DerivedData, clean build, restarting Xcode. I also verified that my dependent libraries were set correctly. The only thing that worked was disabling new "New Build System"
I just had this problem today. I have little demo code in a mac project(created with Xcode 9.4). This error just started to occur after I upgraded system to macOS Mojave 10.14. However, in Xcode 10 this project runs no problem(without changing anything). If you can use Xcode 10 it will probably be fixed.
Unfortunately, the above solutions didn't work for me (although I am sure they work for some people).
Here is what worked for me, in case this helps anyone else:
Close Xcode
Open Xcode and Create a new Xcode project
In the iOS template, select Single View App then click Next
yes, I know you are trying to get a macOS app attaching to the debugger :).
Give the iOS app any product name and organization identifier you would like and click Next
Create the new project anywhere you would like (I saved it to my desktop)
Build and run (cmd + r) the iOS app on a simulator like the iPhone 8 (starting a simulator and running the iOS app will take a little time, so have patients)
After the iOS app runs in the simulator, click to stop it from running (the stop button is next to the run button)
Open your macOS app that you are having trouble connecting a debugger to, and build and run it (cmd + r)
This, for some reason, allowed me to connect to the debugger with my macOS app...
Xcode version: 10.1, macOS Mojave version: 10.14.2
Using Xcode 5 GM, anytime I switch to the 5.1, 6.0 or 6.1 simulators to test, I get the error "iOS Simulator failed to install application." When I reset the simulator it works, but this is getting very tiring.
Anybody have a permanent fix or workaround?
Looks like this is a known issue. From the Xcode 5 release notes:
After switching the minimum deployment target of an application from
iOS 7.0 to a release prior to iOS 7.0, building and running the
application may fail with the message “iOS Simulator failed to install
the application.”
Go to the iOS home screen, click and hold the application icon, then tap the hovering “X” button to delete the application. 13917023
Another release note:
iOS Simulator
If an iOS app is detached, relaunching the same app from Xcode will
result in a black screen in the Simulator even though the new app is
launched. Terminate the app in the Simulator or relaunch it for the
second time. 14648784
Delete the old version app in your simulator (usually iOS 6.x).
Alternatively, header over to iOS Simulator - Reset Content and Settings.
This can be easier when you have a lot of apps on the simulator and can't remember which one you're currently working on.
You need to do this for every iOS Simulator version that causes the problem.
None of the other suggestions worked for me. However, after comparing my existing app settings to a new vanilla project, I noticed that the "Build" field for my Target was blank. Once I put something in that field, the app installed just fine!
if you have already developed project and you used xib to develop views then
X-Code > Inspector Selector Bar > Interface Builder Document > opens in > and change from Xcode Default(5.o) to Xcode 4.6 .
Build and Run your app it will run successfully, if it won't run again then, header over to iOS Simulator - Reset Content and Settings. delete old app from simulator then Run again.
i got the same problem but solved by following way....
Launch the iOS Simulator
Go and click "iOS Simulator" menu
Click "Reset content and settings"
Close simulator and rebuild your app.
Above screen shot is showing the way how you can do this...
I think this works for you...!!!
Deleting the app in the simulator works for me.
just wanted to add that this happen only if I open xib that created in xcode 4.6
If it's other files, this not happen
try this ....
in my case nothing have worked for me , after resetting the content simulator also , i am not able to install the app on simulator . after that i just changed my project location . i just moved the project to other location . then it installed successfully.
None of the above things worked for me. I just reinstalled xcode and it worked.
Ran into this issue today. Found it was an empty Reference Folder (blue folder) causing this. Removed the folder from Resources in Build Phase... cleaned build folder for the heck of it, and it went away.
/Users/YOURUSERNAME/Library/Developer/Xcode/ --> remove all contents of this folder, then simply launch the app from Xcode.
To check your Executable file settng ex.$(EXECUTABLE_NAME)
(Project setting - info property page)
I have different issue when getting error message “iOS Simulator failed to install application”, the reason is because I have added a property in App-Info.plist without any value. For instance, [Application Category] with no value. Thus the error will show up as well.
When I got this error, the image of the phone actually appeared, but the image of the app I wanted to test did not. Instead, I was on the main page of the phone that shows the apps you have. I fixed this problem by deleting the many icons that appeared on the start screens - about 30 of them. These had been created when I testing apps over the months. So, not saying its a solution, but it started working after I deleted the old app images.
For me it was -framework XCTest.
It made the app die with iOS Simulator failed to install application
and on the device Could not inspect the application package.
Removed it and now works.
You are using Xcode GM which is under beta stage. Use latest Xcode 5.1.1 available.
Also, these error occur while switching between simulator (32 bit and 64 bit).
Quit the simulator and re-build the application. OR
Reset simulator from "iOS simulator" -> "Reset content and settings.."
I changed my app name and bundle id midway. I happened to delete the Executable File name in my plist. I changed it back to "${EXECUTABLE_NAME}" (no quotes) and I'm back in business.
I have run into a rather annoying bug in Xcode 4.3.2.
If you run a process from within Xcode, then stop the simulator directly (outside of Xcode), Xcode still shows the process as running and effectively disables any further interaction with the simulator.
I can't stop the process from within Xcode (no response), and I can't start a new process either as Xcode sees the simulator as being in use. Shutting down the simulator does not notify Xcode either, so I have no option but to shut down Xcode and open it up again But even that does't work as Xcode hangs whilst trying to shut down the process too! So I have to force quit Xcode!
Has anyone found a way round this? I realise I should now only operate the simulator from within Xcode, but I am used to being able to operate the simulator independently.
thanks
I was having similar issues with Xcode 4.3.2. I fixed them by doing the following:
Launch Xcode.
Close any open projects.
Open Organizer.
Delete project form left panel using the gear icon on the bottom left. Select "Remove from Organizer...". This clears all the data about your project that Xcode has cached (indexes, DerivedData, Snapshots, etc.).
5). Re-open project.
Since doing this, my Xcode hanging issues have disappeared.
Here are the steps I follow when this happens:
Start the simulator if it isn’t already running
Choose the option “Reset Content and Settings…” from the iOS Simulator menu
Clean and rebuild the project
I have seen many question like this before but in my case it is not working only on iPad.
I have breakpoints that are not working in iPad but when I Run my application on Simulator or on the iPhone all the breaking point are working properly.
I have tried install SDK again, Delete the previous build, clean , clean all target & Load Symbols Lazily.
Try deleting the app from the iPad, restart, clean the project, run normaly, stop, activate breakpoints, and re-try.
Sometimes when Xcode is started and device is already connected to MAC, the device appears in XCode even if the device iOS version is higher than the XCode iOS version. At this time the break point doesn't work.