CODEWITHSUNDEEP
xcodexcode11
Ky -
Ky -

Reputation: 32093

Xcode build fails due to Undefined symbol: __swift_FORCE_LOAD_$_swiftUIKit

I created a brand new project in Xcode 11 (an iOS single-view project with SwiftUI) and enable Mac as a target device. Without doing anything else, I try to build, and I get this error:

ld: warning: directory not found for option '-L/Applications/Xcode'
ld: warning: directory not found for option '-L11.0-Beta.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/uikitformac'
ld: warning: directory not found for option '-L/Applications/Xcode'
ld: warning: directory not found for option '-L11.0-Beta.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/uikitformac'
ld: warning: Could not find or use auto-linked library 'swiftUIKit'
Undefined symbols for architecture x86_64:
  "__swift_FORCE_LOAD_$_swiftUIKit", referenced from:
      __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject in AppDelegate.o
      __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject in SceneDelegate.o
      __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject in ContentView.o
     (maybe you meant: __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Environment

Upvotes: 35

Views: 41865

Answers (8)

Ammar Khaliq
Ammar Khaliq

Reputation: 45

Remove

"$(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)" from "Library Search Paths” of Build Settings

Upvotes: 0

TheWorstCoder
TheWorstCoder

Reputation: 101

I had to reinstall Xcode completely, because of missing swift folder in "$(TOOLCHAIN_DIR)/usr/lib"

Upvotes: 1

ramzesenok
ramzesenok

Reputation: 6921

I had this error when I accidentally imported XCTest to the app target. Didn't notice it till I checked git diff. If you run into this issue make sure you didn't export inappropriate stuff too

Upvotes: 2

Florent
Florent

Reputation: 1765

Update: This works for XCode Version 13.0 (13A233), too.

For XCode Version 12.0.1 (12A7300),

I just added libswiftWebKit.tbd to

Link Binary with Libraries (from project, Build Phases)

and the build was successful.

See image below: enter image description here

Upvotes: 129

Jimmy liu
Jimmy liu

Reputation: 1687

For me, I used to encounter link error with swift library with Xcode 12, I resolved it by add "$(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)" and "$(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)" into the "Library Search Paths" of "Build Settings"

Upvotes: 3

PavelPark
PavelPark

Reputation: 91

Go to Xcode, in the project name, right click and click on “New file…” Select Swift File and click on Next Select the project target and Finish In the next screen select “Create bridging Header” - Make sure to bridge.

Keep the swift file there for future in order to run the simulator.

Upvotes: 9

Anhdevit
Anhdevit

Reputation: 2104

Create an Empty Swift file using Xcode, such as named test.swift, and try to run again

Upvotes: 9

Ky -
Ky -

Reputation: 32093

As hinted by the warnings saying directory not found, it seems Xcode doesn't like having a space in its bundle's file name.

I renamed it from Xcode 11.0-Beta.2.app to Xcode-11.0-Beta.2.app and now it builds just fine.

Upvotes: 2

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