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5 Replies

  • denormal's avatar
    denormal
    Icon for New Contributor rankNew Contributor
    7 years ago

    Debian user here. Close to Ubuntu so hopefully this will work for you.

    I'm sure you've long since found an answer but one solution is to build libpng12 from source and install. On libpng's webpage you can find a link to the source. Look for the tarball of libpng12 (i used libpng-1.2.59.tar.gz), extract and in the directory you extracted to run...

    ./configure
make
sudo make install

    Then finally to update the links to the new shared libraries.

    sudo ldconfig

    I didn't get any conflicts from having different versions of libpng installed but if you do you may need to remove your current version before installing.

    Links

    http://www.libpng.org/pub/png/libpng.html

    https://sourceforge.net/projects/libpng/files/libpng12/1.2.59/

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    Ubuntu is not supported by Intel/Altera, having said that I have it running on a 16 version. I have no idea about 17, from your link it looks like it is not possible to have the libpng12, but others might be able to tell you if it is possible and how to do that.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    --- Quote Start ---

    Hello,

    I installed the free edition of Quartus on Ubuntu. But, I can't start it. The error looks like: 

    
$./quartus
$quartus: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory

    I found a topic on the web also,

    https://askubuntu.com/questions/895897/error-while-loading-shared-libraries-libpng12-so-0

    Thanks.

    --- Quote End ---

    After installing libpng12 (from https://packages.ubuntu.com/xenial/amd64/libpng12-0/download) I was able to run Quartus 17.0 on ubuntu 17.04.
  • Julien's avatar
    Julien
    Icon for Occasional Contributor rankOccasional Contributor
    7 years ago

    Hi,

    Just wanted to say thanks, I had Quartus running on Ubuntu 16.04, then upgraded to 18.04, which broke it with the exact same error mentionned by OP, and your recommandation fixed the problem.

  • PDabh's avatar
    PDabh
    Icon for New Contributor rankNew Contributor
    6 years ago

    I have Quartus 13.1 installed on Ubuntu 18.04 and I am getting the libpng missing library error. I installed the available deb package and also recompiled it from source and installed manually, but no luck in getting Quartus to launch.

    This is what my ldconfig looks like 

    $ ldconfig -p | grep libpng
	libpng16.so.16 (libc6,x86-64) => /usr/local/lib/libpng16.so.16
	libpng16.so.16 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libpng16.so.16
	libpng16.so (libc6,x86-64) => /usr/local/lib/libpng16.so
	libpng12.so.0 (libc6,x86-64) => /usr/local/lib/libpng12.so.0
	libpng12.so.0 (libc6,x86-64) => /lib/x86_64-linux-gnu/libpng12.so.0
	libpng12.so.0 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libpng12.so.0
	libpng12.so (libc6,x86-64) => /usr/local/lib/libpng12.so
	libpng.so.3 (libc6,x86-64) => /usr/local/lib/libpng.so.3