Thread: The following packages have unmet dependencies

i have know idea i've gone , done

when ever try install blender build dependencies get...

code:

the following packages have unmet dependencies.   libavcodec-dev : depends: libavcodec53 (>= 4:0.7.3-2u1~ppa1) not going installed or                             libavcodec-extra-53 (>= 4:0.7.3) 4:0.7.2.1ubuntu3~ppa1 installed   libavdevice-dev : depends: libavdevice53 (>= 4:0.7.3-2u1~ppa1) 4:0.7.2-1ubuntu1 installed or                              libavdevice-extra-53 (>= 4:0.7.3) not going installed   libavformat-dev : depends: libavformat53 (>= 4:0.7.3-2u1~ppa1) 4:0.7.2-1ubuntu1 installed or                              libavformat-extra-53 (>= 4:0.7.3) not going installed   libavutil-dev : depends: libavutil51 (>= 4:0.7.3-2u1~ppa1) not going installed or                            libavutil-extra-51 (>= 4:0.7.3) 4:0.7.2.1ubuntu3~ppa1 installed   libswscale-dev : depends: libswscale2 (>= 4:0.7.3-2u1~ppa1) 4:0.7.2-1ubuntu1 installed or                             libswscale-extra-2 (>= 4:0.7.3) not going installed  e: unable correct problems, have held broken packages.

i never had problem before

how on earth can fix

appreciated.

synaptic has filter sorting out broken packages...

system>>administration>>synaptic package manager>>custom>>broken...

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