tesseract-ocr no longer installable on Ubuntu:22.04 due to missing libleptonica6 dependency

[mirekphd]

Current Behavior

I'm trying to install Tesseract OCR (tesseract-ocr) on Ubuntu (from one of PPA archives: ppa:alex-p/tesseract-ocr-devel or ppa:alex-p/tesseract-ocr-daily). However, the installation fails due to libleptonica6 no longer being installable:

 #32 8.592 The following packages have unmet dependencies:
 #32 8.648  libtesseract5 : Depends: libleptonica6 (>= 1.75.3) but it is not installable
 #32 8.649  tesseract-ocr : Depends: libleptonica6 (>= 1.75.3) but it is not installable

Expected Behavior

Latest tesseract-ocr should be installable on Ubuntu 22.04.

Suggested Fix

No response

tesseract -v

latest

Operating System

No response

Other Operating System

Ubuntu 22.04

uname -a

No response

Compiler

No response

CPU

No response

Virtualization / Containers

To reproduce in Docker:

$ docker run --rm -it --name test -u 0 ubuntu:22.04 bash -c "apt update && apt install -y software-properties-common && add-apt-repository -y ppa:alex-p/tesseract-ocr-devel && apt update && apt install -y tesseract-ocr"
# note you can swap the PPA archive to `ppa:alex-p/tesseract-ocr-daily` or `ppa:alex-p/tesseract-ocr5.3` with the same result 

Other Information

This started to happen on Oct 30 and subsequent days, while on Oct 29 and earlier it used to install correctly.

[mirekphd]

A workaround is to switch to one of stable PPAs, e.g. ppa:alex-p/tesseract-ocr5:

$ docker run --rm -it --name test -u 0 ubuntu:22.04 bash -c "apt update && apt install -y software-properties-common && add-apt-repository -y ppa:alex-p/tesseract-ocr5 && apt update && apt install -y tesseract-ocr && tesseract --version"
[..]
Setting up liblept5:amd64 (1.82.0-3build1) ...
Setting up libtesseract5:amd64 (5.4.1-1ppa1~jammy1) ...
[..]
tesseract 5.4.1
 leptonica-1.82.0

[stweil]

Did you report this to the Ubuntu maintainers?

[amitdo]

CC: @AlexanderP