I recently noticed all of my crash reports in Firebase Crashlytics were not being deobfuscated, they were all returning compiler errors and memory locations (eg <compiler-generated> - Line 4331771636, EXC_BREAKPOINT 0x0000000102afd6f4), rather than function names and line numbers. I realised it's because Fabric has been shutdown (4th May 2020), so I began the transition to Firebase Crashlytics.
I changed my pod file and added the Firebase/Crashlytics pod, and followed the transition instructions located here.
I've put the following code in my Run script under Build Phases in Xcode:
"${PODS_ROOT}/FirebaseCrashlytics/run"
"${PODS_ROOT}/FirebaseCrashlytics/upload-symbols" -gsp "${PROJECT_DIR}/GoogleService-Info.plist" -p ios "${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}"
When I build my project I get the following error returned from upload-symbols:
Fetching upload-symbols settings...
[31merror: Could not fetch upload-symbols settings: Could not connect to the server.[0m
Command PhaseScriptExecution failed with a nonzero exit code
If I manually run the upload-symbols script in terminal, I get the same error error: Could not fetch upload-symbols settings: Could not connect to the server.
I also noticed that on the Crashlytics dashboard in Firebase, I had lost all my previous crash data and was receiving the message Error loading your issues.
How can I fix the errors and get Crashlytics working like before?
The solution was to force a crash in my app using fatalError(). It is not obvious that this is required to finalise the registration of the new SDK with the Firebase Crashlytics backend.
After doing this, all my historical crash data is available like before, and upload-symbols completes successfully.
I am getting an Error on the top of my interface builder in Xcode 10.3 and while clicking on report bug and checking the log.txt file I found out that fails to open simulator. However I am not starting any simulator.
Here is the Error found in Log.txt
Encountered an error communicating with IBAgent-iOS. (Failure reason: IBAgent-iOS failed to launch): Failed to boot device iPhone Xs (0B8270CC-2BFB-4BB6-90A5-6BA61468A1AD, iOS 12.4, Shutdown) for context <IBCocoaTouchToolLaunchContext: 0x7fe80e754ad0> toolName = IBAgent-iOS, description = <IBCocoaTouchPlatformToolDescription: 0x7fe80e2a0290> System content for IBCocoaTouchFramework-ElevenAndLater <IBSimulatorDeviceTypeDescription: 0x7fe80fab2f90> deviceType=com.apple.CoreSimulator.SimDeviceType.iPhone-XS (Failure reason: Failed to boot iPhone Xs (0B8270CC-2BFB-4BB6-90A5-6BA61468A1AD, iOS 12.4, Shutdown)): Unable to boot the Simulator. (Failure reason: launchd failed to respond.)
Error Domain=com.apple.InterfaceBuilder Code=-1 "Encountered an error communicating with IBAgent-iOS." UserInfo={NSLocalizedFailureReason=IBAgent-iOS failed to launch, NSUnderlyingError=0x7fe80ae44440 {Error Domain=NSPOSIXErrorDomain Code=60 "Operation timed out" UserInfo={NSLocalizedFailureReason=Failed to boot iPhone Xs (0B8270CC-2BFB-4BB6-90A5-6BA61468A1AD, iOS 12.4, Shutdown), NSLocalizedDescription=Failed to boot device iPhone Xs (0B8270CC-2BFB-4BB6-90A5-6BA61468A1AD, iOS 12.4, Shutdown) for context <IBCocoaTouchToolLaunchContext: 0x7fe80e754ad0> toolName = IBAgent-iOS, description = <IBCocoaTouchPlatformToolDescription: 0x7fe80e2a0290> System content for IBCocoaTouchFramework-ElevenAndLater <IBSimulatorDeviceTypeDescription: 0x7fe80fab2f90> deviceType=com.apple.CoreSimulator.SimDeviceType.iPhone-XS, NSUnderlyingError=0x7fe80bd300f0 {Error Domain=NSPOSIXErrorDomain Code=60 "Operation timed out" UserInfo={NSLocalizedFailureReason=launchd failed to respond., NSLocalizedDescription=Unable to boot the Simulator.}}}}, NSLocalizedRecoverySuggestion=Please check Console.app for crash reports for "IBAgent-iOS" for further information., NSLocalizedDescription=Encountered an error communicating with IBAgent-iOS.}
If anyone still looking for an answer to this after Xcode 13 update, I have tried everything they mentioned on the internet and nothing worked except one. The only thing that worked is the complete re-installation of Xcode. Completely uninstall/delete Xcode first and restart the mac and reinstall Xcode then all should be good.
Delete Xcode from Applications Folder and Empty Trash.
Go to ~/Library/Developer and Delete CoreSimulator, Xcode, XCTestDevices Folder. Empty trash
Goto ~/Library/Caches and delete everything starting with com.apple.dt.Xcode, Empty trash
Then Restart your Mac and reinstall Xcode. I used my downloaded Xcode app, AppStore installation will also work, I guess.
Now it all working.
Before that, I have changed the storyboard file using Open as Source Code mode (coz I couldn't open it in Interface Builder - Xcode just hang)
I changed the storyboard design device to iPhone 13 instead of the older device version it had.
<device id="retina6_7" orientation="portrait" appearance="light"/>
I change the existing line with this line. It kinda solve another issue of Xcode hanging, when trying to open with Interface Builder, but it didn't solve Encountered an error communicating with IBAgent-iOS issue when trying to install the app. That issue only got solved when I completely reinstalled the Xcode.
I have managed to fix it just by changing preview device on interface builder
In my case it helped:
clean project
remove derived data
close Xcode
restart Mac
I used DevCleaner XC helper app:
https://apps.apple.com/us/app/devcleaner-for-xcode/id1388020431?mt=12
removed everything, and after that restarted mac. No XC reinstall needed.
This problem caused because, I deleted all directories under "Library/Developer/Xcode" for a purpose. But, I realised I also deleted wrong directories in same time. Then I put back directories from the Bin. It is solved for me.
If you have or have had multiple versions of Xcode open, you may need to reboot or completely re-install the CoreSimulatorService, an evil, globally installed background service that somehow remains online and available to many versions of Xcode despite it being compatible with only one version.
See more here: https://stackoverflow.com/a/72946533/731285
Other symptoms of this issue: Simulators not showing up in the Window > Devices and Simulators listing and simctl throwing errors and being unable to find base iOS SDKs similar to the following:
$ xcrun simctl list
...
-- Unavailable: com.apple.CoreSimulator.SimRuntime.iOS-15-5 --
iPhone 8 (55A90310-8202-4A0D-968B-00F440D42210) (Shutdown) (unavailable, runtime profile not found)
See also:
Command CompileAssetCatalog failed with a nonzero exit code
Xcode device Unavailable, runtime profile not found
In my case, I just had to set team in
Project > Targets > Signing & Capabilities > Team > Personal Team
I have started receiving following error suddenly on TestTarget, not sure what has changed
Showing All Issues
ld: -bundle and -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES) cannot be used together
I have turned off bitcode already on app build target.
App is building fine and running , this error appears only for testing .
I have been getting a really strange error using Xcode 3.2.5 AND the latest Xcode 4 where I can build my code on debug on the simulator, but as soon as I try to deploy it onto a device (or build in 'release' mode) I get a really strange compile error on UIAccelerometer.h that resides in the UIKitFramework. The error message is:
invalid suffix "_0" on integer constant
The line in UIAccelerometer.h that causes the issue is:
UIKIT_CLASS_AVAILABLE(2_0) #interface UIAccelerometer : NSObject
I have obviously not changed the UIKit Framework, so I can't understand at all why I'm getting this error. I've tried changing deployment targets to all iOS SDKs, tried changing any settings with minSdk versions on Xcode, etc.
I'm trying to have printing in my application.
While this works, and I can indeed print from my application, I would like to be able to run my application on devices that aren't running iOS 4.2.
Even if I check the version before I run the code.
The method that prints the document has all of the classes that are being used to print.
Whenever I switch the simulator back to 4.1, I get a Symbol not found exception that displays the error:
dyld: Symbol not found: _OBJC_CLASS_$_UIMarkupTextPrintFormatter
Referenced from: /Users/Jack/Library/Application Support/iPhone Simulator/4.1/Applications/794534DB-DB53-42E7-A294-7E78FDD3899B/Documentation.app/Documentation
Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.1.sdk/System/Library/Frameworks/UIKit.framework/UIKit
in /Users/Jack/Library/Application Support/iPhone Simulator/4.1/Applications/794534DB-DB53-42E7-A294-7E78FDD3899B/Documentation.app/Documentation
I don't want to discard the users who haven't upgraded to 4.2.
Any help appreciated.
Which compiler are you using? If you haven't, you should switch to LLVM GCC or LLVM to support automatic weak linking as described by Marco Arment in Supporting older versions of iOS while using new APIs.