tesseract_qt: Cannot locate rosdep definition for [gz-math7]

[serboba]

Hi,

I'm following the Getting Started installation tutorial (https://tesseract-docs.readthedocs.io/en/latest/_source/intro/getting_started_doc.html) and get the following error at the step:

rosdep install -y --from-paths ~/tesseract_ws/src --ignore-src --rosdistro noetic

The error:
ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: tesseract_qt: Cannot locate rosdep definition for [gz-math7]

and also the step above with:
wstool init ~/tesseract_ws/src/ ~/tesseract_ws/src/tesseract_planning/dependencies.rosinstall

there is no file called dependencies.rosinstall but I assume dependencies.repos is meant.
For that I also opened a pull request:
tesseract-robotics/tesseract_docs#18

Many thanks in advance.

[Levi-Armstrong]

Here is a script to add the necessary ppa. Then install the following libraries: libgz-rendering7-dev libgz-common5-dev libgz-math7-dev

[serboba]

Unfortunately it still doesn't work. The same error remains:
$ rosdep install -y --from-paths ~/tesseract_ws/src --ignore-src --rosdistro noetic ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: tesseract_qt: Cannot locate rosdep definition for [gz-math7]

I followed the instructions in the documentary 1 to 1 and also tried them on my other Ubuntu 20.04 laptop and inside a Ubuntu 20.04 docker container, but it didn't work. I also tried to delete the rosdep sources list and reinitialize it but it also didn't make any difference.

[Levi-Armstrong]

When using rosdep you need to add the gazebo packages to the skip keys.

[rjoomen]

Or run rosdep with option -r, this ignores missed dependencies:

rosdep install --ignore-src --from-paths src -y -r

[serboba]

It worked, thanks a lot!!