regolith-session-common and regolith-styles both try to install /usr/bin/regolith-look

[jjnesbitt]

• [x] I've run a search on the existing bug reports to make sure I'm not filing a duplicate (you can use the search box at the top left corner)
• [x] I've read the Regolith documentation and didn't find any relevant topic
• [x] I tried asking on Slack (especially for configuration related issues)

Describe the bug

I'm trying to upgrade to regolith 3.0 from regolith 1.6, and to begin, I purged everything regolith from my system that I could find. After that, I re-installed regolith based on the instructions, and doing so without including extra looks works fine. However, if I try to install any of the look packages, I get the following error:

> sudo apt install regolith-look-ayu-mirage
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  arc-icon-theme faba-icon-theme fonts-font-awesome fonts-source-code-pro-ttf moka-icon-theme regolith-styles
The following NEW packages will be installed:
  arc-icon-theme faba-icon-theme fonts-font-awesome fonts-source-code-pro-ttf moka-icon-theme regolith-look-ayu-mirage regolith-styles
0 upgraded, 7 newly installed, 0 to remove and 2 not upgraded.
Need to get 0 B/58.8 MB of archives.
After this operation, 118 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Selecting previously unselected package faba-icon-theme.
(Reading database ... 288209 files and directories currently installed.)
Preparing to unpack .../0-faba-icon-theme_4.3-1_all.deb ...
Unpacking faba-icon-theme (4.3-1) ...
Selecting previously unselected package moka-icon-theme.
Preparing to unpack .../1-moka-icon-theme_5.4.523-201905300105~daily~ubuntu19.04.1_all.deb ...
Unpacking moka-icon-theme (5.4.523-201905300105~daily~ubuntu19.04.1) ...
Selecting previously unselected package arc-icon-theme.
Preparing to unpack .../2-arc-icon-theme_20161122-1-1regolith-focal_amd64.deb ...
Unpacking arc-icon-theme (20161122-1-1regolith-focal) ...
Selecting previously unselected package fonts-font-awesome.
Preparing to unpack .../3-fonts-font-awesome_5.0.10+really4.7.0~dfsg-1_all.deb ...
Unpacking fonts-font-awesome (5.0.10+really4.7.0~dfsg-1) ...
Selecting previously unselected package fonts-source-code-pro-ttf.
Preparing to unpack .../4-fonts-source-code-pro-ttf_1.010-0ubuntu1~ppa2-1regolith-focal_all.deb ...
Unpacking fonts-source-code-pro-ttf (1.010-0ubuntu1~ppa2-1regolith-focal) ...
Preparing to unpack .../5-regolith-styles_2.9.7-1_amd64.deb ...
Unpacking regolith-styles (2.9.7-1) ...
dpkg: error processing archive /tmp/apt-dpkg-install-ud4Weg/5-regolith-styles_2.9.7-1_amd64.deb (--unpack):
 trying to overwrite '/usr/bin/regolith-look', which is also in package regolith-session-common 0.9.6-1regolith-focal
Selecting previously unselected package regolith-look-ayu-mirage.
Preparing to unpack .../6-regolith-look-ayu-mirage_2.9.7-1_amd64.deb ...
Unpacking regolith-look-ayu-mirage (2.9.7-1) ...
Errors were encountered while processing:
 /tmp/apt-dpkg-install-ud4Weg/5-regolith-styles_2.9.7-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

The notable section is the following:

dpkg: error processing archive /tmp/apt-dpkg-install-ud4Weg/5-regolith-styles_2.9.7-1_amd64.deb (--unpack):
 trying to overwrite '/usr/bin/regolith-look', which is also in package regolith-session-common 0.9.6-1regolith-focal

From what I can tell, the file from regolith-styles is 3 years old, and the file from regolith-session (the file I currently have on my system) was last modified in August.

Anyone have any idea what's going on / how to fix this?

Installation Details

• Regolith Install Type: PPA
• Regolith Version: 3.0
• PPA url: https://regolith-desktop.org/release-3_0-ubuntu-focal-amd64
• Host OS (for PPA): Ubuntu 20.04

Additional context

• I'm using regolith-session-flashback.
• To try to work around the issue, I force installed regolith-styles, which overwrote the regolith-look binary. I've tried using both the old and new binary for that, both of which produce a bugged (although somewhat usable) experience.

[kgilmer]

Hi, regolith-styles was depreciated on the 3.0 release. It was replaced by regolith-look-default. I suggest removing the depreciated package and installing whichever look you prefer.

[jjnesbitt]

Hi, regolith-styles was depreciated on the 3.0 release. It was replaced by regolith-look-default. I suggest removing the depreciated package and installing whichever look you prefer.

How do I go about installing the look I prefer? The documentation just says to install whatever regolith-look-* package you want. Is there some other way to do it?

By the way, really appreciate the quick response! :smile:

[kgilmer]

The documentation just says to install whatever regolith-look-* package you want. Is there some other way to do it?

It's not obvious, but you can just query the package manager:

apt list | grep regolith-look-

[jjnesbitt]

I believe the issue is that regolith-styles is a dependency of any of those look packages. So simply installing any of those look packages attempts to install regolith-styles, which is what includes the conflicting binary.

[kgilmer]

Hmm, perhaps you are pulling from multiple regolith apt repositories? Check for multiple things in /etc/apt/sources.list.d with 'regolith' in them. You should only be installing regolith from a single repository

[jjnesbitt]

Indeed that seemed to be the issue! The installation of Regolith 3 left the old source in place (regolith-linux-ubuntu-release-focal.list vs regolith.list). Sorry for all the noise and I really appreciate your help!