1 duplicate symbol for architecture x86_64
Solution 1
You need to add necessary framework to your project. Check all third party party framework and search its required framework for support. For e.g. if you add google analytic
then you need to add CoreData
, Foundation
etc framework. There is some framework is missing for which third party framework needs.
Or you can-
- Press
"Cmd + Shift + K"
orshift + cmd + alt + k
to clean up, and quit Xcode. Delete the cache Run
"rm -rf ~/Library/Developer/Xcode/DerivedData"
in terminalOpen the project and re-build it
Linker command failed with exit code 1
- to solve this error press "Cmd + Shift + K"
or shift + cmd + alt + k
this will do the work for you. I also have this same issue but solved by using this line . Hope this will solve your problem.
OUTPUT OF YOUR PROJECT -
Solution 2
duplicate symbol _main
You have two main.m files and the function main() is in conflict.
Just delete the main.m under CERangeSlider and it should work.
Solution 3
I have cloned your project from github, I found that the main.m
file is repeated in SFITNESS
and CERangeSlider
You may delete one of them and your project will work.
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Hanz Cheah
Trying to become a full stack developer. Started to learn web development with classic ASP, HTML, Javascript and CSS. Wrote my 1st iOS apps with Objective C. Still learning and thanks to all who has helped me.
Updated on September 16, 2022Comments
-
Hanz Cheah over 1 year
I am not sure what I have done wrong.
I moved my project folder to another folder and copied the backup folder to desktop.
I tried to open the backup project and build, I received the linker error.
So I decided to I delete my backup folder and moved back my project folder to desktop. I can't compile anymore and received the following error.Showing Recent Issues clang: error: linker command failed with exit code 1 (use -v to see invocation) duplicate symbol _main in: /Users/BRO/Library/Developer/Xcode/DerivedData/SFITNESS-flzvwdymttxhducvwvmhpuaqfzhj/Build/Intermediates.noindex/SFITNESS.build/Debug-iphonesimulator/SFITNESS.build/Objects-normal/x86_64/main-90EC778DD760FD57.o /Users/BRO/Library/Developer/Xcode/DerivedData/SFITNESS-flzvwdymttxhducvwvmhpuaqfzhj/Build/Intermediates.noindex/SFITNESS.build/Debug-iphonesimulator/SFITNESS.build/Objects-normal/x86_64/main-F627C2B37F247040.o ld: 1 duplicate symbol for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
No derived data folder
Still the same
1. I opened Derived Data folder and deleted everything in it
2. I deletes all the project in all simulator
3. I restarted xCode, Clean and buildAdded the project into GitHub
The link
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dahiya_boy about 6 yearshave you deleted you driveddata ??
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Hanz Cheah about 6 yearsHi, I have tried your step but still the same error?
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Hanz Cheah about 6 yearsHi thanks Rashed, I have tried your solution but it didn't work. Tried many times to delete the DerivedData and restart xCode. It still won't build.
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Rashed about 6 yearsdid you try shift + cmd + alt + k?
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Hanz Cheah about 6 yearsI suspect some files or code that I have downloaded from gitHub which I have added long time ago that was not properly referenced in objective C after I have copy the folder around.
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Rashed about 6 yearsthat will not be a problem
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matt over 4 yearsThis answer has been edited to add spam images, and should probably be removed.