Error downloading models

[meryl-spencer]

When running $ign fuel download -v 4 -j 8 -u "https://fuel.ignitionrobotics.org/openrobotics/collections/SubT Tech Repo"
I get the following error messages:
[Err] [Zip.cc:161] Error opening: materials/textures/Chainlink_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Chainlink_Transparency.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Door_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Entrance.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/GroundDirt_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Light_Plastic_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Light_Plastic_Emissive.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Pipes_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Rails_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/RockWall_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/RustyMetal_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/Wood_Albedo.jpg
[Err] [Zip.cc:161] Error opening: materials/textures/YellowPlastic_Albedo.jpg
[Err] [Zip.cc:161] Error opening: meshes/
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_01.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_02.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_03.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_04.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_05.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_06.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_07.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_08.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_09.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_Section_10.DAE
[Err] [Zip.cc:161] Error opening: meshes/Edgar_StartingArea.DAE
[Err] [Zip.cc:161] Error opening: model.config
[Err] [Zip.cc:161] Error opening: model.sdf
[Err] [Zip.cc:161] Error opening: thumbnails/
[Err] [Zip.cc:161] Error opening: thumbnails/1.jpg
[Err] [Zip.cc:161] Error opening: thumbnails/2.jpg
[Err] [Zip.cc:161] Error opening: thumbnails/3.jpg
[Err] [Zip.cc:161] Error opening: thumbnails/4.jpg
[Err] [Zip.cc:161] Error opening: thumbnails/5.jpg
[Err] [Zip.cc:118] Source archive does not exist: /home/maspence/.ignition/fuel/fuel.ignitionrobotics.org/openrobotics/models/edgar mine virtual stix/12/edgar mine virtual stix.zip
[Err] [LocalCache.cc:415] Unable to unzip [/home/maspence/.ignition/fuel/fuel.ignitionrobotics.org/openrobotics/models/edgar mine virtual stix/12/edgar mine virtual stix.zip]

[nkoenig]

I think you might have an old/broken version of the ign-fuel-tools library. Try running the following command.

dpkg -l | grep ignition-fuel-tools5

You should see a version that is 5.1.1. If you don't then you'll likely need to run:

sudo apt-get update
sudo apt-get upgrade libignition-fuel-tools5-dev

[meryl-spencer]

I believe I have the required version.

maspence:$ dpkg -l | grep ignition-fuel-tools5
ii libignition-fuel-tools5:amd64 5.1.1-1bionic amd64 Ignition fuel-tools classes and functions for robot apps - Shared library
ii libignition-fuel-tools5-dev:amd64 5.1.1-1~bionic amd64 Ignition fuel-tools classes and functions for robot apps - Development files

[nkoenig]

These errors are due to multiple threads unzipping a file in the same directory. The -j 8 command line option uses 8 threads to download models. Multiple models depend on the edgar mine virtual stix model, which can cause these models to both download and unzip the edgar mine virtual stix simultaneously.

The models files are actually there, which you should be able to confirm.

I've created the following issue to track this problem: gazebosim/gz-fuel-tools#188

[acschang]

If you're looking for a temporary work-around and removing the -j 8 from your Ignition fuel doesn't work or you don't want to re-run the command you can try the following bash commands in your fuel directory to cleanup the empty directory structure and re-extract correctly:

#/bin/bash
find . -name "*.zip" | while read filename; do rm "`dirname "$filename"`/materials"; rm "`dirname "$filename"`/meshes"; rm "`dirname "$filename"`/thumbnails"; rm "`dirname "$filename"`/textures"; done;
find . -name "*.zip" | while read filename; do unzip -o -d "`dirname "$filename"`" "$filename"; done;