xcode - invalid bitcode

Question

I'm getting this error

error: Invalid bitcode signature

clang: error: linker command failed with exit code 1 (use -v to see invocation)

I am using cocoapods and I have verified that all enable bitcodes match, I've tried all options Yes, No and ${inherited} for the enable bitcode field.

Not sure how to debug this further, how to I use the -v option / will that even give me more information.

Some back ground, I'm merging two code bases together iPhone and iPad so that it's a universal app.

I am experiencing the same situation. I am not using Cocoapods, each static/dynamic frameworks are built successfully, however the project fails to build the main app with this error. I have turn on/off bitcode, but it didn't change. However, this error only occurs on iPhones, not on the simulator. — user5865651
– user5865651, Commented Mar 31, 2018 at 11:00

Florian · Accepted Answer · 2017-04-29 20:54:37Z

6

In my project I fixed this by setting all "Bitcode enabled" options to "No". That includes all targets and all projects in the workspace (main project, Cocoa Pod project).

answered Apr 29, 2017 at 20:54

Florian

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HA S · Accepted Answer · 2018-01-10 01:27:32Z

5

error: Invalid bitcode signature clang: error: linker command failed with exit code 1 (use -v to see invocation)

Note: If you are building for the target phone 9 or 10 the following solution solves the issue

Solution

Open Podfile
Uncomment this line ~> platform :ios, '9.0'
From the command line run the following command where Podfile resides
pod update
In the xcode select Product > clean and then Product > Build

Hope this solves the problem

answered Jan 10, 2018 at 1:27

HA S

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2 Comments

BK- Over a year ago

By far the simplest and most relevant answer. I recently moved my target iOS down from 11 to 10 and hadn't updated my Podfile or updated. The above is accurate, save for the fact that instead of commenting out the platform line you can also just update it to the version you are targeting. Thank you @HA SHAH!!

HA S Over a year ago

@BK- I am glad it helped you. Best of luck !

Sean Choe · Accepted Answer · 2017-04-11 23:24:05Z

3

This trick worked for me:

Select project file -> Select target -> General -> Linked Frameworks and Libraries -> Delete libPods.a

answered Apr 11, 2017 at 23:24

Sean Choe

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Oded Harth Over a year ago

How did you figure out that this library was causing the problem?

Sean Choe Over a year ago

@OdedHarth I followed Suresh.D's instruction, but I couldn't get the same error on the new project. So I was comparing the old project to the new project one by one, and found out the libPods.a is the only difference.

Dearwolves · Accepted Answer · 2017-05-01 09:52:38Z

3

If you have a static library (ends with .a), It's possible that its bitcode settings is not agreeing to your workspace / project.

answered May 1, 2017 at 9:52

Dearwolves

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LuisCien Over a year ago

This pointed me in the right direction. In my case I had a static library that was missing the new arm64_32 architecture for watchOS. Thank you!

Nathan Barreto · Accepted Answer · 2017-10-09 19:17:22Z

1

Using pod deintegrate and pod install again resolved my problem. It might be helpful to other who have this question.

answered Oct 9, 2017 at 19:17

Nathan Barreto

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Nikolaj Simonsen · Accepted Answer · 2017-04-06 06:11:49Z

0

I got the same error after doing a pod update - restarting Xcode did the trick for me.

answered Apr 6, 2017 at 6:11

Nikolaj Simonsen

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T.V. · Accepted Answer · 2017-05-17 13:57:39Z

0

Cleaning Derived data folder worked for me.

answered May 17, 2017 at 13:57

T.V.

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jakob.j · Accepted Answer · 2017-12-10 16:18:01Z

0

For me it helped to "update project to recommended settings" and clean, credits to Rocksaurus: https://stackoverflow.com/a/47336130/1884907

answered Dec 10, 2017 at 16:18

jakob.j

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Snips · Accepted Answer · 2018-11-21 11:43:24Z

0

I was having this problem since adding Cocoapods (actually added to start using ResearchKit).

I had gone through and ensured bitcode enabled was set to NO, but thought it odd that the 'Pods' project (within the project workspace) didn't have a definition for 'Bitcode Enabled' under Build Settings. After lots of frustration, I tried adding the 'Bitcode Enabled' setting for the ResearchKit project (I just cut&pasted the key/values from my main app project for accuracy).

Hey presto! This got me past this error, and I just had to fix some arch related things and I was up and running again.

I guess if there isn't a Bitcode Enabled key/value defined, it defaults to YES.

edited Nov 21, 2018 at 11:43

answered Aug 15, 2018 at 15:24

Snips

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Suresh D · Accepted Answer · 2017-04-05 14:53:43Z

Maybe the issue because of a third party SDK integrated into your project using Cocoapods.

do the following:

Create a new Xcode project
Copy the Podfile from your original project to the newly created project's directory
Do pod install
Remove one or more of the pods⋆
Archive the new project, and see if it succeeds, if not repeat step 4 till you are able to archive.

(you can also try something like binary search, wherein you delete the first half pods in your Podfile and see if the new project archives)

Once you've figured out the library causing the issue, keep downgrading the library by explicitly specifying the version in Podfile, until the project archives successfully.

Or if you don't mind disabling bitcode: Go to build settings search bitcode and change "Enable Bitcode" to "No".

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