No releases available for package pear.PHPUnit.de (on Windows)

No releases available for package pear.PHPUnit.de/PHPUnit

You probably get this error when you try to run the following command:

pear install phpunit/PHPUnit

If you are getting this error you will need to run the following commands:

pear update-channels

then

pear clear-cache
pear install phpunit/PHPUnit

This is one of the zillion errors you will be getting when trying to install PHPUnit on Windows. Frankly I am wondering if these software are ready for Microsoft Windows.