CODEWITHSUNDEEP
iosxcodeswiftlldbbeta
Jake
Jake

Reputation: 13753

Xcode - Error creating LLDB target

I'm getting this error whenever I build in XCode 6 beta 4. It seems to be making my app insanely slow.

Warning: Error creating LLDB target at path '/***/***/***/***.app'- using an empty LLDB target which can cause slow memory reads from remote devices.

What exactly does this mean and how do I fix it?
Thanks in advance!

Upvotes: 76

Views: 55487

Answers (7)

marc-medley
marc-medley

Reputation: 9832

Use file to check the archicture of the build executable. The build folder can be located with the Product > Show Build Folder in Finder menu.

pwd
# …path/to/Build
cd Products/Debug-iphonesimulator/ExampleName.app

file ExampleName
# Mach-O 64-bit executable x86_64

### x86_64 can raise the empty LLDB target error when debugging
### iOS in the Simulator on an Apple Silicon computer.

The following settings resolved the …using an empty LLDB target… error for Xcode 15.2 and the associated iPhone Simulator:

.xcodeproj Settings

Title Name Debug Release
Architectures ARCHS default: $(ARCHS_STANDARD) default: $(ARCHS_STANDARD)
Excluded Architectures EXCLUDED_ARCHS unset unset
Build Active Architectures Only ONLY_ACTIVE_ARCH Yes default: No

CocoaPods Podfile

### other: `ONLY_ACTIVE_ARCH` = YES only for `*Debug*` configurations
if config.name.include?("Debug")
    config.build_settings["ONLY_ACTIVE_ARCH"] = "NO"
end

debug.xcconfig

As FYI, the ONLY_ACTIVE_ARCH setting can be added to *.xcconfig files for both implementation and documentation purposes.

// Resolve "Error creating LLDB target … using an empty LLDB target…"
ONLY_ACTIVE_ARCH = YES

Upvotes: 0

matt
matt

Reputation: 534885

In my case I had to change Build Active Architecture Only (ONLY_ACTIVE_ARCH) to YES for the Debug configuration.

Upvotes: 1

khanhlvg
khanhlvg

Reputation: 781

Did you use Architectures=$(ARCHS_STANDARD_32_BIT) and run your app on a 64 bit device? (iPhone 5S or iPhone 5S simulator)

Apple seems to be stricter with apps which don't support 64bit. So if there is no specific reason, I think it's better to include arm64 in your build architecture

NOTE ABOUT 64-BIT ARCHITECTURE

An app extension target must include the arm64 architecture in its Architectures build settings or it will be rejected by the App Store. Xcode includes this architecture with its “Standard architectures” setting when you create a new app extension target.

If your containing app target links to an embedded framework, the app must also include the arm64 architecture or it will be rejected by the App Store.

For more information about 64-bit development, see 64-Bit Transition Guide for Cocoa Touch or 64-Bit Transition Guide for Cocoa, depending on your target platform.

Source: https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/ExtensionCreation.html

Upvotes: 63

PeterPurple
PeterPurple

Reputation: 433

My "Architectures" included arm64 but I had to add arm64 to "Valid Architectures" in the target.

Upvotes: 0

MB_iOSDeveloper
MB_iOSDeveloper

Reputation: 4198

In Xcode 6.4 , Swift 1.2. I had to edit both the Project and Target to the correct arm verisons (arm64, armv7 and armv7s). Take a look:

enter image description here

Upvotes: 0

wilforeal
wilforeal

Reputation: 369

Double Check Build Settings => Valid Architectures for both Project and Target.

Mine used to say: arm64 armv7 i386 (The one causing the error was i386)

I replaced it to : arm64 armv7

I hope that helps.

Upvotes: 4

Jayprakash Dubey
Jayprakash Dubey

Reputation: 36447

This warning is solved by changing Build Settings :

  1. Select Project -> Build Settings

  2. Change 'Architectures' to 'Standard architectures (armv7, arm64) - $(ARCHS_STANDARD)' Step 2

  3. This will prompt an alert stating iOS 5.1.1 and above are supported. Click 'Change Deployment Target to 5.1.1'

Step 3

  1. Repeat steps for Target (if not changed automatically)

Step 4

Also, this is preferred build setting since Apple is forcing developers to build apps on 64 but architecture. Apple document Link

Upvotes: 9

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