Package Lookup Failed on Sample Application

Hey folks,

I’m having an issue with creating the app image mentioned in the Tutorial. I’m on AMD 64 Debian 10 (Testing). I’ve tested both using the native install as well as the docker image.

I can build the application and run it manually at qt-appimage-template/AppDir/usr/bin/qt-appimage-template but when running appimage-builder --generate get this error:

INFO:Generator:Analysing application runtime dependencies
INFO:AppRuntimeAnalyser:strace -f -e trace=openat -E LD_DEBUG=libs /home/jack/qt-appimage-template/AppDir/usr/bin/qt-appimage-template $@
INFO:Generator:Guessing APT configuration
INFO:dpkg-query:/usr/bin/dpkg-query -S
WARNING:dpkg-query:dpkg-query: error: --search needs at least one file name pattern argument
WARNING:dpkg-query:
WARNING:dpkg-query:Use --help for help about querying packages.
Traceback (most recent call last):
  File "/usr/local/bin/appimage-builder", line 8, in <module>
    sys.exit(__main__())
  File "/usr/local/lib/python3.9/dist-packages/appimagebuilder/__main__.py", line 77, in __main__
    generator = RecipeGenerator()
  File "/usr/local/lib/python3.9/dist-packages/appimagebuilder/generator/generator.py", line 69, in __init__
    self.apt_includes = AptRecipeGenerator.resolve_includes(
  File "/usr/local/lib/python3.9/dist-packages/appimagebuilder/generator/apt_recipe_generator.py", line 41, in resolve_includes
    packages = AptRecipeGenerator._map_files_to_packages(runtime_libs)
  File "/usr/local/lib/python3.9/dist-packages/appimagebuilder/generator/apt_recipe_generator.py", line 50, in _map_files_to_packages
    packages = dpkg_query.search(runtime_libs)
  File "/usr/local/lib/python3.9/dist-packages/appimagebuilder/commands/dpkg_query.py", line 31, in search
    raise DpkgQueryError("Package lockup failed")
appimagebuilder.commands.dpkg_query.DpkgQueryError: Package lockup failed

I’m using the default arguments for basic information:

~/qt-appimage-template$ appimage-builder --generate
INFO:Generator:Searching AppDir
INFO:Generator:Searching desktop entries
INFO:Generator:Reading desktop entry: /home/jack/qt-appimage-template/AppDir/usr/share/applications/QtQuickControls2Application.desktop
Basic Information :
? ID [Eg: com.example.app] : QtQuickControls2Application
? Application Name : SimpleQtApp
? Icon : QtQuickControls2Application
? Version : latest
? Executable path relative to AppDir [usr/bin/app] : usr/bin/qt-appimage-templat
e
? Arguments [Default: $@] : $@
? Update Information [Default: guess] : guess
? Architecture : amd64

I’m not totally convinvced that it’s not my install, but do you have any idea of things to try? Thanks for your help!

[azubieta]

I didn’t see the error message when I ran without strace though?

Did you upgraded appimage-builder and removed strace? The check was added to the generate method only, so if you are running appimage-builder without the --generate it will not be required.

Should it also be added here?

It’s done, I just pushed to the wrong repo.

[azubieta]

@stormchaser3000 the ‘–generate’ feature needs to be able to run the application in order to analyze the runtime dependencies. In a cross compilation environment this is usually not possible. But you can still create a recipe manually, here is one for arm64 that you can adapt to armhf.

Fell free to ping me on the #appimage irc channel if you have any other questions