error: Eigen2-support is only available up to version 3.2. Please go to "http://eigen.tuxfamily.org/index.php?title=Eigen2" for further information

[yurivict]

On FreeBSD the build for the version 1.2.0 fails:

In file included from libavogadro/src/extensions/surfaces/openqube/atom.cpp:17:
In file included from libavogadro/src/extensions/surfaces/openqube/atom.h:22:
In file included from libavogadro/src/extensions/surfaces/openqube/molecule.h:27:
/usr/local/include/eigen3/Eigen/Core:340:2: error: Eigen2-support is only available up to version 3.2. Please go to "http://eigen.tuxfamily.org/index.php?title=Eigen2" for further information
#error Eigen2-support is only available up to version 3.2. Please go to "http://eigen.tuxfamily.org/index.php?title=Eigen2" for further information
 ^
1 error generated.

eigen-3.3.5 is installed.

[JackPerdue]

This should be noted in the INSTALL file. At present it allows 2.x and 3.x. It should note that it is 2.x and 3.x < 3.3. Not having to rebuild OpenBabel with < 3.3 will save some people time and hopefully removes the error above.

jack (off to rebuld OpenBabel)

[JackPerdue]

I should also note that OpenBabel 3.x doesn't seem to work either (tried 3.0.0). It fails during configure/cmake, whereas the Eigen issue doesn't show up until make.

[ghutchis]

We're not maintaining the old codebase anymore, which we thought was clear from the Github notice and lack of commits.

[JackPerdue]

It wasn't (clear). You could be more explicit like "this is the old version that is no longer maintained and what you really want is this link for new version".

You could also add it to the top of the README... in
GREAT BIG LETTERS to make it clear/obvious.

The lack of commits was certainly a sign.

Thanks!!! for your reply... I guess I'm off to build v2.