source package build is failing

[Max]

Trying to build the source package using sbuild is failing with the following error.

+------------------------------------------------------------------------------+
| Install mountall build dependencies (apt-based resolver) |
+------------------------------------------------------------------------------+

Installing build dependencies
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 sbuild-build-depends-mountall-dummy : Depends: plymouth-dev (>= 0.8.5.1) but it is not installable
E: Unable to correct problems, you have held broken packages.
apt-get failed.
Package installation failed

[Steve Langasek (vorlon)]

You are using sbuild with incorrect options. mountall build-depends on:

  Build-Depends: [...] plymouth-dev (>= 0.8.5.1) | libplymouth-dev (>= 0.8.1-3)

Launchpad resolves this to libplymouth-dev, which exists, instead of plymouth-dev, which does not. You need to configure your sbuild to use the same options as are used for builds in Launchpad.

[Max (maximilian-a-brenner)]

Solution is to add the "--resolve-alternatives" flag to sbuild.