Error "library not found for" after putting application in AdMob

Question

I am getting an error after I put my application in an AdMob. The app was working until today. The error is the following:

ld: library not found for -lGoogleAdMobAds
clang: error: linker command failed with exit code 1 (use -v to see invocation)

How can I fix this? Thank you.

Solution 1

Sometimes you just remove the reference of the library and add reference again.

Apart from adding the Google Mobile Ads SDK and other libraries again from scratch, I would recommend you checking the Library Search Paths. There are instances when you copy or duplicate a target, Xcode decides that it needs to escape any double quotes " with a '\'. Make sure you remove all the \’s - it should look like this -

I was able to duplicate the error, by doing prefixing my path with multiple '\'.

Solution 2

I had a similar "library not found" issue. However it was because I accidentally was using the .xcodeproj file instead of the .xcworkspace file.

Solution 3

Select your Target, go to "Build Phases" in "Link Binary With Libraries" remove ".a" file of that library. Clean and Build.

Solution 4

If error related to Cocoapods as follow:

library not found for -lPod-...

You need to check Other Linker Flags and remove it from there.

Extra Information: If you have an old project that uses cocoapods. And recently you needed to add the use_frameworks! to your podfile. cocoapods will not add the libraries to your Other Linker Flags anymore cause its inherited. Therefore, you may need to remove those manually from the other linker flags which they were added before using the use_frameworks!

Solution 5

For my case Xcode 7, also worked in Xcode 9.1/9.2

ld: library not found for -ldAfnetworking
clang: error: linker command failed with exit code 1 (use -v to see invocation)

set Build Active architecture Only to Yes

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Comments

[nmh]

Try this: stackoverflow.com/questions/1471968/…

[Aakil Ladhani]

stackoverflow.com/questions/33140790/…

[TheTiger]

Sometimes: Unplug your device and first build the project. It will generate libraries and then you will be able to run in device.

[Mayur Deshmukh]

I have many flags here, should I remove all or just the one for the Pod?

[hasan]

If those flags causes a problem. you should remove them or keep them and add the library if you still want to use it.

[Jabbar]

What about when we need to create a Production build for App Store? I mean it should be NO for Production Build.

[Ted]

agree it should be NO for production

[Jabbar]

Will this NO effect on Production Build Installation?

[Eduardo Oliveros]

i remove that but doesn't work, mix panel its the problem

[hasan]

I guess that happens when you try to remove the library that is added by cocoa pods manually. The correct way is to remove the library from your podfile. then you run pod install again

[Eva Madrazo]

Thanks!! This was a clue for me :). In my case, the duplicate target has divided every -l"framework" in two lines "-l" and "framework" !!

[brainray]

Yup, strange enough that Xcode doesn't mark it missing by coloring it red

[Romain TAILLANDIER]

you also could have rename the target in the podfile.

[Aakash Aggarwal]

Worked for me while integrating Pinterest SDK on XCode 9.2 and iOS 11.

[edenwaith]

This fixed my particular problem. I had two similar named libraries, one named libPods-Foo BarTests.a and another one named libPods-FooBarTests.a .

[InnisBrendan]

I found references to AWS pods I just removed from my project here. Thanks

[Prince Kumar Sharma]

good one, after pod install, one of the library was not listed there. I don't know why but adding that library path makes it work.

[Ian Steffy]

@EvaMadrazo This happened with me too. Did you delete all but one "framework" or just combine them into one line?

[Eva Madrazo]

@IanSteffy just combine it

[EFreak]

Can somebody please explain the purpose of .xcodeproj and .xcworkspace?

[Mark]

Things like this make me love the Javascript ecosystem

[Jose Pose S]

Really nice!! my problem was when I added user framework to old project. Remove coreplot.a and works fine!!!!

[Brayan Loayza]

How i can change that..?

[Azam]

xcworkspace is when you use Cocoapods. It's not Xcode problem, but the users.

[ZedTuX]

Well this fixed my issue "Library not found for -lART" and it's really unbelievable ! Thank you !

[Will]

ffs I wasted a good 5 hours earlier this afternoon because I didn't realize the difference. -_-

[Luat Vu Dinh]

Consider "Header Search Paths" too.

[Daniel Benedykt]

.xcworkspace is when you have more than 1 "project" inside your solution. For example you can have external libraries (cocoapods) or your own library that you use in many projects.

[Flacito]

This gets me about once every 6 months with XCode. It's especially a problem with react-native and other similar Pods heavy apps. You need the workspace not the project.

[MathMax]

@raurora How do you access library search paths?

[raurora]

@MassimoFrittelli Project > Build Settings tabs > Search Paths. You can type on the search option too.

[Nathanael]

This is what I needed - Thank you!

[Papyrus]

This happened to me when I updated a pod project to XCode 13 relating to the Nimble framework that the previous version Cocoapod tool (used to create the workspace) stuck into the Podfile at a specific version. This made pod update not fix it right away, I had to replace pod 'Nimble', '~> X.Y.Z' with just pod 'Nimble' which updated Nimble to the latest version which solved my problem.