Cannot install libpulse-dev in Ubuntu

Question

I like to use PocketSphinx speech recognition engine. For that, libpulse-dev is one of the dependencies. However, I cannot install libpulse-dev in my system.

I used the following command to install the package:

sudo apt-get install libpulse-dev

And I get the following output:

Building dependency tree       
Reading state information... Done
Package libpulse-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libpulse-dev' has no installation candidate

What should I do? Thank you in advance...

Answer 1

Your /etc/apt/sources.list is misconfigured, edit it as follows:

deb http://us.archive.ubuntu.com/ubuntu focal main restricted
deb http://security.ubuntu.com/ubuntu focal-security main restricted
deb http://us.archive.ubuntu.com/ubuntu focal-updates main restricted

Then run:

sudo apt update
sudo apt install libpulse-dev

Answer 2

if anyone are using CentOS 7 try do this:

sudo yum install pulseaudio-libs-devel sudo yum install alsa-lib-devel -y

sudo yum install portaudio pip3 install --upgrade pocketsphinx

...or try it:

pip3 install pipwin pipwin install pyaudio