[SOLVED] Problems building 'dwarffortress' snap

snapcraft
1

Hi everyone, I got an email telling me my ‘dwarffortress’ snap contained outdated packages so I decided to manually rebuild. Today I ran through this same process and received an error on build.snapcraft.io and I’ve narrowed my issue down to these lines in the build log:

Failed to stage: Parts 'deps' and 'desktop-gtk2' have the following files, but with different contents:
    usr/sbin/update-icon-caches

Snapcraft offers some capabilities to solve this by use of the following keywords:
    - `filesets`
    - `stage`
    - `snap`
    - `organize`

My git repo is at https://github.com/ultraviolet-1986/df and I think this may just be a problem with my snapcraft.yaml but I can’t say for sure. The file built correctly not long ago so this feels out-of-the-blue. If anyone can help me to correct this, I would appreciate it. Thanks everyone!

EDIT: I have attempted to fix the problem a few times without success so I have reverted my repo to the last successful build (which still fails today) just to make the situation less complicated. Thanks again.

EDIT 2: The contents of the snapcraft.yaml file are here for reference (so nobody has to follow links):

# -*- Mode: YAML; indent-tabs-mode: nil; tab-width: 2 -*-

name: dwarffortress
version: 0.47.04
summary: Dwarf Fortress world simulator. Forked from 'https://github.com/mikix/df'.
description: |
  Dwarf Fortress is a single-player fantasy game by Bay 12 Games. You can control a dwarven outpost or an adventurer in a randomly generated, persistent world.
  This is an unofficial snap, which redistributes the original binaries without modification. This version is forked from 'https://github.com/mikix/df'.
  Upstream: http://www.bay12games.com/dwarves/
confinement: strict
grade: stable
architectures: [amd64]

parts:
  tarball:
    plugin: dump
    source: http://www.bay12games.com/dwarves/df_47_04_linux.tar.bz2
    source-checksum: sha512/65f6cd39187afbb7b60ba72d0caf23c39d95674615ab718ad55c25cad23c08e42c1b911cfde7015b05a280325504f3b931f2c7defb34ee2ee6b725101c536cea
    override-build: |
      chmod a+x df
      find . -type d -exec chmod a+rx {} +
      snapcraftctl build
    prime:
      - -g_src
      - -libs/libstdc++.so.6
  desktop-gtk2:
    after: []
  deps:
    plugin: nil
    stage-packages:
      - freeglut3
      - gtk2-engines-pixbuf
      - libcanberra-gtk-module
      - libglu1-mesa
      - libopenal1
      - libsdl-image1.2
      - libsdl-ttf2.0-0
      - packagekit-gtk3-module
  overlay:
    plugin: dump
    source: overlay

apps:
  dwarffortress:
    command: desktop-launch $SNAP/wrapper.sh
    plugs: [opengl, pulseaudio, x11, unity7]
2

The snapcraft.yaml file contained a lot of old cruft which ultimately broke the build. I rebuilt the file piece by piece and included any additional dependencies.

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