I have a problem when installing certain software for Debian Jessie.

  I use apt-get install ...

Sometimes it works, but in most cases I get the message: "The following packages have unsolved dependencies ... dependent on ... but ... should be installed. Problems can't be corrected. You have defect packages."

I get crazy. I have no clue how to tackle these problems. I don't need a quick fix for a certain installation but a general method or tutorial how to solve this package problem when it occurs.

I have a problem when installing certain software for Debian Jessie. I use apt-get install.

Sometimes it works, but in most cases I get the message:

The following packages have unsolved dependencies ... dependent on ... but ... should be installed. Problems can't be corrected. You have defect packages.

I get crazy. I have no clue how to tackle these problems. I don't need a quick fix for a certain installation but a general method or tutorial how to solve this package problem when it occurs.