PPA for trusty: debhelper not available?

Asked by Nico Schlömer on 2016-06-09

When doing a trusty build on a PPA, e.g., [1], I'm getting an error for an uninstallable debhelper dependency every time,
```
 sbuild-build-depends-trilinos-dummy : Depends: debhelper (>= 7) but it is not going to be installed
```
The problem does not occur for any other release series, e.g., [2].

[1] https://launchpadlibrarian.net/264285295/buildlog_ubuntu-trusty-amd64.trilinos_12.7~20160609100510-3fbb69bb-1trusty1_BUILDING.txt.gz
[2] https://launchpadlibrarian.net/264286045/buildlog_ubuntu-wily-amd64.trilinos_12.7~20160609101332-3061acd1-1wily1_BUILDING.txt.gz

Question information

Language:
English Edit question
Status:
Solved
For:
Launchpad itself Edit question
Assignee:
No assignee Edit question
Solved by:
William Grant
Solved:
2016-06-09
Last query:
2016-06-09
Last reply:
2016-06-09

This question was originally filed as bug #1590673.

Nico Schlömer (nschloe) said : #1

When doing a trusty build on a PPA, e.g., [1], I'm getting an error for an uninstallable debhelper dependency every time,
```
 sbuild-build-depends-trilinos-dummy : Depends: debhelper (>= 7) but it is not going to be installed
```
The problem does not occur for any other release series, e.g., [2].

[1] https://launchpadlibrarian.net/264285295/buildlog_ubuntu-trusty-amd64.trilinos_12.7~20160609100510-3fbb69bb-1trusty1_BUILDING.txt.gz
[2] https://launchpadlibrarian.net/264286045/buildlog_ubuntu-wily-amd64.trilinos_12.7~20160609101332-3061acd1-1wily1_BUILDING.txt.gz

Best William Grant (wgrant) said : #2

The packages in that PPA or one of its dependencies render debhelper uninstallable.

"but it is not going to be installed" means that a package matching that predicate exists, but its dependency relationships can't be satisfied. Try getting a fresh trusty chroot, adding that PPA and its dependencies (you can grab the sources.list lines from the top of the log), and try to install debhelper. You should get more details about which dependency relationships are unsatisfiable within that set of PPAs.

Nico Schlömer (nschloe) said : #3

Thanks William Grant, that solved my question.