linker-errors

This question already has an answer here: What is an undefined reference/unresolved external symbol error and how do I fix it? 33 answers I get the error: main.o(.text+0x1ed): In function `main': : undefined reference to `avergecolumns' collect2: ld returned 1 exit status when I gcc *.o. I'm not quite sure what causes this error. Other posters have explained it as the function is not found or the function is empty. If someone could clarify or refine, it would be greaty appreciated! Here is my function's code(I'm trying to calculate the average of the column in 2D arrays): #include "my.h" void

I installed OpenGL packages in Ubuntu 13.04 ( *mesa-common-dev freeglut3-dev* ) and tried to run a sample program. #include "GL/freeglut.h" #include "GL/gl.h" /* display function - code from: http://fly.cc.fer.hr/~unreal/theredbook/chapter01.html This is the actual usage of the OpenGL library. The following code is the same for any platform */ void renderFunction() { glClearColor(0.0, 0.0, 0.0, 0.0); glClear(GL_COLOR_BUFFER_BIT); glColor3f(1.0, 1.0, 1.0); glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0); glBegin(GL_POLYGON); glVertex2f(-0.5, -0.5); glVertex2f(-0.5, 0.5); glVertex2f(0.5, 0.5);

Recompiling a C++ iPhone app with Xcode 4 I get this nasty linker error: ld: bad codegen, pointer diff in __static_initialization_and_destruction_0(int, int) to global weak symbol vmml::Vector2<float>::ZERO for architecture armv6 Anyone know what it means? How to make it go away would be nice too of course :) The app compiled & linked without error in Xcode 3. Edit : the solution is to set Symbols Hidden By Default to Yes in all the build settings of all targets in the project. Still none the wiser what the actual problem was. The solution is to set Symbols Hidden By Default to Yes in all the

I have just updated my Xcode to Xcode 8 and am now trying to convert my project's code to Swift 2.3. I was able to build a couple times using Xcode 8 without any errors. Now, the following errors came up: Error #1: Apple Mach-O Linker Error: Linker command failed with exit code 1 ld: file not found: /Users/Linus/Library/Developer/Xcode/DerivedData/MyApp-asdjeshhsetnfxbegcsbcipdreneewgr/Build/Intermediates/MyApp.build/Debug-iphonesimulator/MyApp.build/Objects-normal/x86_64/DownloadsViewController.o clang: error: linker command failed with exit code 1 (use -v to see invocation) I don't even know

I will like to clone my android code from gitlab repository in Android Studio 0.8.1.I checked into VCS >> Checked out from Version Control >> Git >> Added HTTP url here.It prompts me that "Repositroy test has failed".Kindly help me to sort out the issue.I have checked the plugins as well.Thanks a lot. Sree You need to download and install git from http://git-scm.com/downloads Then you need to track the git.exe on AndroidStudio: Go to Settings > Project Settings > Version Control > VCSs > Git > Path to Git executable Select (or type) executable path, eg: D:\Program Files (x86)\Git\cmd\git.exe

I am trying to use inline member functions of a particular class. For example the function declaration and implementation without inlining is as such: in the header file: int GetTplLSize(); in the .cpp file: int NeedleUSsim::GetTplLSize() { return sampleDim[1]; } For some reason if I put the "inline" keyword in either one of the implementation and declaration, as well as in both places, I get linker errors as shown: Creating library C:\DOCUME~1\STANLEY\LOCALS~1\TEMP\MEX_HN~1\templib.x and object C:\DOCUME~1\STANLEY\LOCALS~1\TEMP\MEX_HN~1\templib.exp mexfunction.obj : error LNK2019: unresolved

Suddenly, out of the blue, I get the LME288 linker error. [ilink32 Warning] Warning: D:/Projects/TrainFever Game Manager/TFGM/Win32/Debug/TFGameManager.ilc: 0x00010000 / 0x08000000 [ilink32 Warning] Warning: D:/Projects/TrainFever Game Manager/TFGM/Win32/Debug/TFGameManager.ild: 0x00010000 / 0x08000000 [ilink32 Warning] Warning: D:/Projects/TrainFever Game Manager/TFGM/Win32/Debug/TFGameManager.ilf: 0x00010000 / 0x0a000000 [ilink32 Warning] Warning: D:/Projects/TrainFever Game Manager/TFGM/Win32/Debug/TFGameManager.ils: 0x0003b000 / 0x08000000 [ilink32 Warning] Warning: unknown heap name :

I have built my App (targeted for iOS7) and now want to apply Google Analytics as the last step before submission. What I did: Downloaded GA for iOS 3.01 Imported content of /GoogleAnalytics/Library/ into group "GoogleAnalytics" Imported libGoogleAnalyticsServices.a into group "GoogleAnalytics" Added Build Phases and swapped build phase libGoogleAnalytics_debug.a with libGoogleAnalyticsServices.a Added code block #include "GAI.h" to my -Prefix.pch -file. Initialize the [GAI sharedInstance] in my AppDelegate . I have attached screenshots of the setup in the bottom of this post. When I try to