Linker command failed with exit code 1 - duplicate symbol __TMRbBp

Question

Since I\'ve updated to Xcode 8.1 I can\'t archive and also not run in Release mode (in debug mode its working). The error is that there are several \"duplicate symbols for a

Answer 1

Had the same problem in Xcode 10.1 and was able to resolve it. In path Project Target > Build Setting > No Common Blocks, I changed it to No.

Answer 2

In my case

1. Select your project (In my case i have 2 targets)
2. Go to Build Phases
3. Compile Sources
4. Check if the number of items on each targets is the same (mine was different)
5. Add the missing file / Remove the duplicated file

Problem Solved

Answer 3

It seems to be a bug in Swift. See discussion on Apple developers portal

It is said to be fixed in Xcode version that is about to be released. But for now there is temporary workaround:

Go to your target Build Settings and set Reflection Metadata Level flag to None

Answer 4

If you're using Ionic and the Push and Console plugins that's the problem. Remove the cordova console plugin (which is deprecated) and the error will disappear.

The linker error is saying that a library is duplicated which is, in fact, true because the console plugin is already in cordova-ios 4.5+

It took me a couple of hours to figure this out!

Answer 5

I had similar kind of problem when I added a framework to my project.

I have resolved the issue by removing the framework and again adding the framework to the project by dragging and dropping the framework file to the projects frameworks folder and selecting the Copy items if needed option.

Answer 6

I ran into this problem recently creating a new project and adding some pods (AlamoFire specifically) to the project. Troubled with it a couple hours or so recreating the project (it was new) several times. Tried all the methods here and no luck.

Eventually I figured out that it was because XCode V10.1 was also opening the old project file along with the new pod-created workspace when I opened the workspace via command line "open myProject.xcworkspace" when I reopened the project after doing "pod install"

Closing all projects before exiting XCode before I did my "pod install" fixed everything for me.