xcode - invalid bitcode

问题:

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.

回答1:

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).

回答2:

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

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

Hope this solves the problem

回答3:

This trick worked for me:

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

回答4:

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

回答5:

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

回答6:

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

回答7:

Cleaning Derived data folder worked for me.

回答8:

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

回答9:

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.

回答10:

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".