Am new to symfony and from last month am continuously installing new symfony project using following command on ubuntu from the terminal
# Linux, Mac OS X
$
It is a resolved issue that you need to specify the version you want to install. As described here and here, you need to:
Update your installer
>symfony self-update
or with sudo, depending on how you install it:
>sudo symfony self-update
Specify the version:
>symfony new my_project_name 3.0
Hope this helps.
UPDATE
With the correct resolutions of the bug on the Symfony installer, now the 3.0 is the default version. In other case, you can specify the complete version (with minor and major) as follows:
>symfony new my_project_name 3.0.0