Hy Tully,

* Tully Foote <tfoote@osrfoundation.org> [2014-04-24 23:07]:
>  * ros-groovy-xacro: 1.7.4 -> 1.6.2

You should never do this (cf. [1])! Package versions as all version numbers
are only allowed to go up, not down. If you really need to downgrade a
package, you can add the old version number behind the new one, like
this: 1.7.4+rally1.6.2-s1395213230~precise, alternatively (in case you
messed up the version numbers) you can add a epoch [2]. Could you please
fix this, as it breaks updates?

Thanks!

Jochen

[1] http://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_emergency_downgrading
[2] https://www.debian.org/doc/debian-policy/ch-controlfields.html#s-f-Version