Ubuntu : Unable to locate package libleptonica-dev

[polki paul]

Hello,

how to install libleptonica-dev on Ubuntu 20.04 ?

sudo apt-get update
sudo apt-get install libleptonica-dev

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libleptonica-dev

Thanks

[Shree Devi Kumar]

https://packages.ubuntu.com/focal/libleptonica-dev

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[Shree Devi Kumar]

From 

https://tesseract-ocr.github.io/tessdoc/Installation.html

Note for Ubuntu users: In case apt is unable to find the package try adding universe entry to the sources.list file as shown below.

sudo vi /etc/apt/sources.list

Copy the first line "deb http://archive.ubuntu.com/ubuntu bionic main" and paste it as shown below on the next line.
If you are using a different release of ubuntu, then replace bionic with the respective release name.

deb http://archive.ubuntu.com/ubuntu bionic universe

[polki paul]

Thanks, it work.

sudo add-apt-repository universe

sudo apt-get update
sudo apt-get install libleptonica-dev