Cannot compile examples with apt package

[RaulPPelaez]

Following the guide I tried to compile TriangleExample.cpp. But I get these errors:

magnum-examples/src/triangle/TriangleExample.cpp:65:24: error: no matching function for call to ‘Magnum::GL::Buffer::setData(const Magnum::Examples::TriangleExample::TriangleExample(const Magnum::Platform::Sdl2Application::Arguments&)::TriangleVertex [3])’
     buffer.setData(data);

magnum-examples/src/triangle/TriangleExample.cpp:70:13: error: ‘Color3’ is not a member of ‘Magnum::Shaders::VertexColor2D {aka Magnum::Shaders::VertexColor<2u>}’
             Shaders::VertexColor2D::Color3{});

Maybe it is a version mismatch problem, but I dont see in the docs any mention to these changes.

BTW magnum-examples-dev package is not present in the Ubuntu package (I am trying to run it in Ubuntu 18.04)

[mosra]

Hi! :)

The master branch of the examples (and also the docs, since these are currently based on master) depends on master branch of magnum, this particular error is related to this feature that's not available in any stable version yet. Depending on what apt package you used (I think the stable 2018.04 version from the PPA?), you might want to do one of these things:

• keep using the stable 2018.04 version and check out the v2018.04 tag of examples to have code that's compatible with it
• or build your own *.deb packages from the master branch. It's just two commands, but note you need to do that for all projects (corrade, magnum, magnum-plugins, ...). Detailed guide is in the docs.

[RaulPPelaez]

Thanks for the instant answer!
Yes, the version is 2018.04.
I checkout'ed the v2018.04 branch in the examples repo and it now compiles without issue as you predicted.
Thanks again!

[mosra]

You're welcome, have fun! :)

By the way, I'm planning to release 2018.08 with a lot of new features hopefully by the end of this month, subscribe to mosra/magnum#265 if you want to get notified when you can upgrade.