[RuntimeException] Package could not be downloaded, sh:1 svn: not found
Typically, users will see this error when installing the smarty package with composer and svn has not been installed yet.
ubuntu@precise64:~$ composer5.4-sp install Loading composer repositories with package information ... [RuntimeException] Package could not be downloaded, sh: 1: svn: not found
The solution is to install the subversion package as root.
sudo apt-get install subversion