Problems installing ffmpeg

Hello, i'm trying to install bbb latest version and i'm having problems with 
step 4, after running ./install-ffmpeg.sh

i got this:

Setting up bbb-record-core (0.9.0-1ubuntu43) ...
ERROR:  Could not find a valid gem 'builder' (>= 0) in any repository
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    Errno::ECONNREFUSED: Connection refused - connect(2) (http://rubygems.org/la                                                                                                                     test_specs.4.8.gz)
dpkg: error processing package bbb-record-core (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of bbb-playback-presentation:
 bbb-playback-presentation depends on bbb-record-core; however:
  Package bbb-record-core is not configured yet.

dpkg: error processing package bbb-playback-presentation (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of bbb-config:
 bbb-config depends on bbb-playback-presentation; however:
  Package bbb-playback-presentation is not configured yet.

dpkg: error processing package bbb-config (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of bigbluebutton:
 bigbluebutton depends on bbb-config; however:
  Package bbb-config is not configured yet.

dpkg: error processing package bigbluebutton (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup 
erro                                                                            
                                         r from a previous failure.
                          No apport report written because the error message ind                                                                                                                     icates its a followup error from a previous failure.
                                                    No apport report written bec                                                                                                                     ause MaxReports is reached already
                                  Errors were encountered while processing:
 bbb-record-core
 bbb-playback-presentation
 bbb-config
 bigbluebutton
E: Sub-process /usr/bin/dpkg returned an error code (1)
--2015-08-14 10:34:51--  http://ffmpeg.org/releases/ffmpeg-2.3.3.tar.bz2
Resolving ffmpeg.org (ffmpeg.org)... 178.63.43.86
Connecting to ffmpeg.org (ffmpeg.org)|178.63.43.86|:80... failed: Connection 
ref                                                                             
                                        used.
tar (child): ffmpeg-2.3.3.tar.bz2: Cannot open: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
./install-ffmpeg.sh: 11: cd: can't cd to ffmpeg-2.3.3
sudo: ./configure: command not found
make: *** No targets specified and no makefile found.  Stop.

checkinstall 1.6.2, Copyright 2009 Felipe Eduardo Sanchez Diaz Duran
           This software is released under the GNU GPL.

The package documentation directory ./doc-pak does not exist.
Should I create a default set of package docs?  [y]: y

Preparing package documentation...OK

*** No known documentation files were found. The new package
*** won't include a documentation directory.

*****************************************
**** Debian package creation selected ***
*****************************************

This package will be built according to these values:

0 -  Maintainer: [ root@BigblueButton ]
1 -  Summary: [ Package created with checkinstall 1.6.2 ]
2 -  Name:    [ ffmpeg ]
3 -  Version: [ 5:2.3.3 ]
4 -  Release: [ 1 ]
5 -  License: [ GPL ]
6 -  Group:   [ checkinstall ]
7 -  Architecture: [ amd64 ]
8 -  Source location: [ src ]
9 -  Alternate source location: [  ]
10 - Requires: [  ]
11 - Provides: [ ffmpeg ]
12 - Conflicts: [  ]
13 - Replaces: [  ]

Enter a number to change any of them or press ENTER to continue:

Installing with make install...

========================= Installation results ===========================
make: *** No rule to make target `install'.  Stop.

****  Installation failed. Aborting package creation.

Cleaning up...OK

Bye.
------------------------------------------------------

So i checked the .sh file and it is the same as the installation guide.

My sv is running this :

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"

What i must do? I update many times o i dont think that the problem is to be in 
an old version, maybe i need some repositories that i dont see.

Thank you for helping,

BR Salvador
Original issue reported on code.google.com by salva6...@gmail.com on 14 Aug 2015 at 2:42
liuzhe02 / bigbluebutton

Problems installing ffmpeg #1972
