Problem with Jack and installing soundscape renderer

Problem with Jack and installing soundscape renderer
The program soundscape renderer needs the “JACK Audio Connection Kit” . However when I try to install it it says Jack is already installed, but when I try and install soundscape renderer it says it cant find Jack :
Quote:
!!! !!!
You appear to have at least one existing installation of JACK.

Complete or partial JACK installs exist in: /usr/lib

Installing this version will leave at least one of these
existing installations installed and this will probably break
JACK on your machine.

Before building, you should first remove the existing JACK
installation(s).

Alternatively use ./configure --prefix=… to force overwriting
the existing install.

WARNING: ON ANY DEBIAN-DERIVED DISTRIBUTION (Debian, Ubuntu etc)
CHANGING THE INSTALLATION PREFIX WILL NOT PRODUCE A WORKING JACK
INSTALL. Please contact the distribution packager for JACK and
ask them to fix their packaging.
!!! !!!
When I try and install ssr ~I get :

Quote:
checking for JACK… no
configure: error: Package requirements (jack >= 0.118.0) were not met:

No package ‘jack’ found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Should I uninstall jack to install this connection kit and if so where is jack installed in ubuntu studio anyway. If not how do I tell ssr where jack is - which file do I edit and again - where is jack located ???

Note the error message:

Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix.

pkgconfig is software often used in compiling packages to handle all the flags etc. for installing other libs. PKG_CONFIG_PATH needs to point to the pkg_config dir typically found in the appropriate lib directory. And finally you need to have -dev versions of packages installed in order to get the header files etc. that are needed to compile software against it(Which also brings in the .pc files in many cases).

   Seablade