Questions tagged [duplicate-symbol]

99 questions
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C++ duplicate symbol linker error with proper include guards?

I'm writing a program to test concrete inheritance, though I cannot resolve the duplicate symbol linker error Clang returns. My understanding is duplicate symbols is always the result of incorrect includes/guards. I have triple checked my…
kits
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C++ Duplicate Symbol error when defining static class variable in XCode

I have a static class member incremented in the constructor. As per the rules, it is declared in the class and defined outside. This should be totally legal. Any ideas why I'm getting a duplicate symbol error? class Player { private: static…
Old McStopher
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Duplicate symbol in C using Clang

I am currently working on my first "serious" C project, a 16-bit vm. When I split up the files form one big source file into multiple source files, the linker (whether invoked through clang, gcc, cc, or ld) spits out a the error: ld: duplicate…
isf
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Duplicate symbols for architecture arm64 - React-Native

I have a React-Native Project that works well, however, when I install vision-camera-code-scanner, the project stops building in XCode and I get the following error: duplicate symbol '_OBJC_CLASS_$_GDTCCTCompressionHelper' in: …
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What is the equivalent of v-for in react?

In vue I can duplicate one svg file several times like v-for="i in 5":key="i". How can I do it in React?
Michaela
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Xcode Exit Code 1 - Duplicate Symbol

Sorry I know this has been covered all over the place, only I can't fix this to save my life. If someone could explain clearly what I might have done and what I might be able to do to fix this I would be forever grateful. Here is my error: Command…
Josh Kahane
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Link Error: Duplicate Symbol

I have 4 source files listed below: //a.h #pragma once namespace proj { class A {} a; } // namespace proj //b.h #pragma once namespace proj { int foo(); } // namespace proj // b.cpp #include "proj/a.h" namespace proj { int foo() { A b =…
user1413793
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Firebase and Google Analytics Frameworks are duplicated in iOS

I upgraded the Firebase version to 3.2 in my swift project. I used the guide in firebase.google.com. I tried to run app but following issues are occurred in build project. I think this issue is appeared owing to the migration of the Google and…
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duplicate symbol error: WebRTC and OpenSSL in iOS

When I use webrtc in ios, found the webrtc and openssl have conflict, lead to compile fail, appears to be the identifier repeat definition, excuse me, how to solve this problem, thanks!~ error: #3 0x00bc2a50 in OBJ_NAME_add () #4 0x00bf833f in…
Cheng Hu
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duplicate symbol error in C

I have the following code layout header.h #ifndef _header_h #define _header_h void empty(float *array, int l) { int i; for (i=1 ; i<=l ; i++) { array[i]=0; } } #endif and two files (lets call them file1.c and…
MaxJ
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Duplicate symbols (two projects in a workspace use the same code)

A is a module project. There are some test targets and the relevant reusable code is compiled in a separate (static library) target. A uses the third party Lumberjack logging library. The Lumberjack code was simply dropped into the project. B is a…
DrummerB
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duplicate symbol and application crash

I am compiling a program on AIX. It is compiled successfully but gives following warnings: ld: 0711-224 WARNING: Duplicate symbol: .basename ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information. I tried to find this symbol…
QMG
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Restkit + MKStoreKit: duplicate symbol because of JSONKit

I'm using MKStoreKit in my application. Now I'd like to add RestKit as well, but after adding RestKit, I get the following error message in XCode: Duplicate symbol _jk_collectionClassLoadTimeInitialization in…
swalkner
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cpp Error Duplicate symbol using namespace

This is going to make me nuts ! First of all I already tried solutions from this thread (C++) Linking with namespaces causes duplicate symbol error with no success (maybe I doing it wrong) Here is what i am attempted to do: // ofApp.hpp #ifndef…
S7th
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Why is my code not throwing a duplicate symbol conflict

Why is my following code not throwing duplicate symbol conflict? I referred to name mangling, but that seems only when there is difference in parameters. But, here there is not difference in parameters. But, still it does not throw conflict.…