5 replies to this topic

[fireshadow4126]

Hello,

I'm working on my game framework in C++. It is composed of a shared library containing all the features and an executable used to test the features (The executable will eventually become a working game).

The library and executable both compile and link fine, but when I try to execute it, I get this error:

main/bin/debug/main: symbol lookup error: main/bin/debug/main: undefined symbol: _ZN7Survive8Graphics4TwoD6SpriteC1Ev

Survive::Graphics::TwoD::Sprite is a sprite class for 2D images.

I'm wondering, what would cause this error?

Sprite and Graphics2D, a class used to draw to a given Sprite, are both defined in Sprite.hpp and implemented in their respective .cpp files. Could this be a cause of the problem?

Otherwise, what would cause this?

Thanks in advance!

[Bregma]

Are you positive you've included all the appropriate .cpp modules in your shared library? Do you in fact have a definition for Survive::Graphics::TwoD::Sprite::Sprite() in the appropriate .cpp file?

[fireshadow4126]

Yes, I use premake to generate my make files, and I generated them again, so all .cpp modules are included in the shared library.

And yes, there is a constructor for Sprite that takes no arguments defined in Sprite.cpp.

[fireshadow4126]

(Sigh). I think this might be the wrong forum for this, I'll try General Programming.

EDIT: Scratch that, I didn't know you couldn't "double post."

Edited by fireshadow4126, 21 June 2012 - 10:51 AM.

[turch]

Make sure that the executable and shared library are in the same directory, and that you are running the executable manually, and not through the IDE.

[fireshadow4126]

I'm on Ubuntu and I use the command line. I've been able to run the executable with the shared library before, and I haven't changed the locations of either, I just added the Sprite, Graphics2D, etc to the library. So the locations of the executable and the shared library aren't the problem.