Xcode 6 Beta - Apple Mach-O Linker error

Question

After updating to the recently released beta 6 of Xcode 6, my swift project fails to build due to the following errors.

Looking at previous questions on this issue, propose checking the build architecture is set to support arm which mine project includes already (arm64, armv7s, armv7).

Poland

Answer 1

First, make sure you have the most recent beta installed. Afterwards delete your DerivedData folder ( ~/Library/Developer/Xcode/DerivedData ). This should allow you to compile again in the latest beta.

Edit: This appears to hold true for the newest beta version of the Xcode as well

Harewood

I fixed Xcode not building my project with this one weird trick! – Home

I confirm that this issue still exists in Xcode 6 Beta 7. – Histochemistry

I got the same issue with Beta 7, but removing the DerivedData fixed it. I only deleted the DerivedData for the project I was working on, not all my other projects. Building happily now – Saito

Answer 2

From what I hear, so far Xcode 6 Beta 6 is broken. You should uninstall and rollback to Beta 5.

Edit: Apparently, a new version is already out, just reinstall beta 6

http://9to5mac.com/2014/08/18/apple-re-releases-xcode-6-beta-6-solves-issues-discovered-by-developers-in-new-build/

Kelvinkelwen

Answer 3

Make sure you install the latest Xcode Beta 6 version. If you check Xcode->About Xcode, you should see: Version 6.0 (6A280e)

Rangel

Thanks, yeap got 6A280e – Poland

Answer 4

I had the same problem. I reinstalled Xcode. then it fixed the problem. In my case it happened because of deleting a imported framework(move to trash) which is inside my project navigator. I think Xcode delete the whole framework when we delete(move to trash) imported framework from our project navigator.

Dom

Answer 5

Make sure you haven't done any unnecessary imports example importing an .h file when you needed .m

Musselman

I suppose, you wanted to say, "Make sure you haven't done any unnecessary imports example importing an .m file when you needed .h" ..? – Disarm