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I wanted to try installing THELI (https://www.astro.uni-bonn.de/theli/) on my Ubuntu machine. In the installation notes it says that it needs qt3, and not qt4 or 5, for the GUI to work properly. I followed the instructions on the installations page and added:

  deb http://debian.tryphon.eu jessie main contrib
  deb-src http://debian.tryphon.eu jessie main contrib

to my /etc/apt/sources.list, which works as it should. But now when I use:

sudo apt-get install qt3-dev-tools

I get the following error:

The following packages have unmet dependencies:
 qt3-dev-tools : Depends: libjpeg62-turbo (>= 1.3.1) but it is not installable
                 Depends: libqt3-mt (>= 3:3.3.8b) but it is not going to be installed
                 Recommends: libqt3-mt-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

So what I took from that is, that libjpeg62-turbo was the problem here. After a little fiddling around I got apt to also install the libtools62-turbo which is an i386-Package (I think I got it working at least). After a new try of installing the qt3-dev-tools I still get the same error message, even though apt told me before that libjpeg62-tools was successfully installed.

I also tried to build qt3 from source, but that didn't work as well because I got some kind of error during the make-phase.

I would very much appreciate it if someone could help me figure out what I am doing wrong.

Mostafa Ahangarha
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Christoph Pohl
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1 Answers1

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Open a terminal and run this : gpg --keyserver pgpkeys.mit.edu --recv-key YOURKEY && gpg --export --armor YOURKEY | sudo apt-key add -

In your case: gpg --keyserver pgpkeys.mit.edu --recv-key D080CEF3C6ADBBD5 && gpg --export --armor D080CEF3C6ADBBD5 | sudo apt-key add -

would fix this problem.

bhordupur
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