"Writing more data than expected" while snapping an ros project
Metadata
Current evaluation
Snapcraft 2.43.1 aborted a ROS catkin build with apt FetchError 'Writing more data than expected' on libxext-dev; no maintainer triage in ~8 years and the 2.x deb-fetch/catkin code paths no longer exist in the repo.
Suggested action: close stale
Reason: The report is an untriaged 2018 support request (only label 'ros', no maintainer reply, one auto-captured comment) about an apt/mirror-level download mismatch in the pre-refactor Snapcraft 2.x tree. The exact code paths in the traceback are gone from the current repo: 'fetch_binary'/'FetchError' no longer match anything in snapcraft/, snapcraft/internal/repo/_deb.py was renamed to snapcraft_legacy (8cdb15d54), and snapcraft/plugins/catkin.py was relocated out of the core repo in 38996d538 ('plugins: move the existing plugin to a new package', canonical/snapcraft#2984). With Snapcraft 2.43.1 long unsupported and the subsystem retired, nothing actionable remains for this report; the underlying error was almost certainly a corrupt/transient archive download rather than a snapcraft defect.
Evaluated by: mr-cal-bot
Impact:
20
Quick Win:
2
Complexity:
55
Confidence:
58
Actionability:
25
Issue body
I was tring to package and deploy a ROS project as a snap.And it turn out the following error.
The project(https://github.com/felixendres/rgbdslam_v2) is working alright on my computer,and what I simply did is "snapcraft init",change the yaml,"snapcraft",strictly folowing this tutorial just with anthor project http://wiki.ros.org/ROS/Tutorials/Packaging%20your%20ROS%20project%20as%20a%20snap
and it went wrong...
################################################
Get:1 libxext-dev_1.3.3-1_amd64.deb [82.1 kB]
Err libxext-dev_1.3.3-1_amd64.deb
Writing more data than expected (82765 > 82090)
Fetched 0 B in 0s (0 B/s)
Sorry, an error occurred in Snapcraft:
Traceback (most recent call last):
File "/usr/bin/snapcraft", line 9, in <module>
load_entry_point('snapcraft==2.43.1', 'console_scripts', 'snapcraft')()
File "/usr/lib/python3/dist-packages/click/core.py", line 716, in __call__
return self.main(*args, **kwargs)
File "/usr/lib/python3/dist-packages/click/core.py", line 696, in main
rv = self.invoke(ctx)
File "/usr/lib/python3/dist-packages/click/core.py", line 1037, in invoke
return Command.invoke(self, ctx)
File "/usr/lib/python3/dist-packages/click/core.py", line 889, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/lib/python3/dist-packages/click/core.py", line 534, in invoke
return callback(*args, **kwargs)
File "/usr/lib/python3/dist-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/usr/lib/python3/dist-packages/snapcraft/cli/_runner.py", line 93, in run
ctx.forward(lifecyclecli.commands["snap"])
File "/usr/lib/python3/dist-packages/click/core.py", line 552, in forward
return self.invoke(cmd, **kwargs)
File "/usr/lib/python3/dist-packages/click/core.py", line 534, in invoke
return callback(*args, **kwargs)
File "/usr/lib/python3/dist-packages/snapcraft/cli/lifecycle.py", line 136, in snap
project = _execute(steps.PRIME, parts=[], **kwargs)
File "/usr/lib/python3/dist-packages/snapcraft/cli/lifecycle.py", line 35, in _execute
lifecycle.execute(step, project_config, parts)
File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle/_runner.py", line 90, in execute
executor.run(step, part_names)
File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle/_runner.py", line 194, in run
self._handle_step(part_names, part, step, current_step, cli_config)
File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle/_runner.py", line 208, in _handle_step
getattr(self, "_run_{}".format(current_step.name))(part)
File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle/_runner.py", line 250, in _run_pull
self._run_step(step=steps.PULL, part=part, progress="Pulling")
File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle/_runner.py", line 327, in _run_step
getattr(part, step.name)()
File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/__init__.py", line 415, in pull
self._runner.pull()
File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/_runner.py", line 83, in pull
"override-pull", self._override_pull_scriptlet, self._sourcedir
File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/_runner.py", line 162, in _run_scriptlet
scriptlet_name, function_call.strip()
File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/_runner.py", line 218, in _handle_builtin_function
function(**function_args)
File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/__init__.py", line 435, in _do_pull
self.plugin.pull()
File "/usr/lib/python3/dist-packages/snapcraft/plugins/catkin.py", line 451, in pull
self._setup_dependencies(rosdep, catkin)
File "/usr/lib/python3/dist-packages/snapcraft/plugins/catkin.py", line 472, in _setup_dependencies
self._setup_apt_dependencies(system_dependencies.get("apt"))
File "/usr/lib/python3/dist-packages/snapcraft/plugins/catkin.py", line 491, in _setup_apt_dependencies
ubuntu.get(apt_dependencies)
File "/usr/lib/python3/dist-packages/snapcraft/internal/repo/_deb.py", line 389, in get
return self._get(apt_cache)
File "/usr/lib/python3/dist-packages/snapcraft/internal/repo/_deb.py", line 449, in _get
destination=self._cache.packages_dir,
File "/usr/lib/python3/dist-packages/snapcraft/internal/repo/_deb.py", line 203, in fetch_binary
% (acqfile.destfile, acqfile.error_text)
apt.package.FetchError: The item '/home/anthony/.cache/snapcraft/stage-packages/apt/bf2a49c20a5c7071360370a3b84a832fedafb28df2dd2fc98c926383342def2e774c1c1673f4fd62a1aab5abbb005ef3/var/cache/apt/archives/libxext-dev_1.3.3-1_amd64.deb' could not be fetched: Writing more data than expected (82765 > 82090)
We would appreciate it if you created a bug report at
https://launchpad.net/snapcraft/+filebug with the above text included.
################################################
I would be so grateful if you could help me out.I attached the yaml in case you need it.
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha |
Impact:
20
Quick Win:
2
Complexity:
55
Confidence:
58
Actionability:
25
|
close stale | Snapcraft 2.43.1 aborted a ROS catkin build with apt FetchError 'Writing more data than expected' on libxext-dev; no maintainer triage in ~8 years and the 2.x deb-fetch/catkin code paths no longer exist in the repo. | |
| stealth/space-bunny-alpha |
Impact:
30
Quick Win:
7
Complexity:
55
Confidence:
80
Actionability:
52
|
needs triage | Snapcraft 2.43.1 failed while pulling libxext-dev for a ROS Catkin build because APT received 82,765 bytes instead of 82,090; the cause remains undiagnosed. | |
| stealth/space-bunny-alpha |
Impact:
25
Quick Win:
7
Complexity:
35
Confidence:
67
Actionability:
45
|
needs triage | Snapcraft 2.43.1 ROS1/catkin packaging reports an apt FetchError while downloading libxext-dev. No reproducer follow-up or maintainer assessment; current build path is unknown. | |
| stealth/space-bunny-alpha |
Impact:
25
Quick Win:
6
Complexity:
45
Confidence:
78
Actionability:
40
|
needs triage | ROS catkin snap build in Snapcraft 2.43.1 fails while downloading libxext-dev with an apt size mismatch; no reproducible environment or maintainer assessment is available. | |
| qwen/qwen3.8-27b |
Impact:
10
Quick Win:
8
Staleness:
95
Complexity:
20
Confidence:
75
Support Request:
80
|
close stale | User on snapcraft 2.43.1 hit an apt FetchError ('Writing more data than expected') pulling catkin/ROS deps. No maintainer response in ~8 years; the error is an apt cache/mirror issue and the affected version is long EOL. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
98
Complexity:
25
Confidence:
90
Support Request:
50
|
close stale | User reports an apt fetch error when packaging a ROS project with snapcraft. Issue has been inactive for over 7 years with no maintainer response. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
98
Complexity:
25
Confidence:
90
Support Request:
75
|
close stale | Report of an apt fetch error during ROS snap packaging with snapcraft v2.43.1. Issue has been inactive for over 7 years with no maintainer response. | |
| qwen3.6-35b-a3b-mtp-q6 |
Staleness:
98
Complexity:
10
Confidence:
90
Support Request:
20
|
close stale | Apt package fetch error (size mismatch) encountered while packaging a ROS project as a snap using snapcraft v2.43.1. No maintainer interaction and over 7 years old. |
Update history
| Date | Change |
|---|---|
| created |
Related work
-
Superseded By:
canonical/snapcraft#2984
(confidence 60%)
Commit 38996d538 moved the plugins (including catkin.py, named in the traceback) out of the core snapcraft repo into a separate package.
-
Related To:
canonical/snapcraft#2669
(confidence 25%)
Later catkin-plugin commits (parallel builds, rosdep/base handling) postdate the 2.43.1 behaviour reported here; no commit mentions 'Writing more data than expected'.
Related issues
No related issues found above the similarity threshold.