Launchpad itself

PPA for trusty: debhelper not available?

Asked by Nico Schlömer

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

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Launchpad itself Edit question
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Solved by:
William Grant
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This question was originally filed as bug #1590673.

Revision history for this message
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

Revision history for this message
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.

Revision history for this message
Nico Schlömer (nschloe) said : 		#3

Thanks William Grant, that solved my question.