[ubuntu-mono] [Bug 1191195] Re: Cannot launch banshee: Unhandled Exception: System.DllNotFoundException: libgtk-x11-2.0.so.0

Sun Jun 16 12:06:30 UTC 2013

Trouble is that these libraries have different names and are all
present. It should be to the applications to decide whatever library
they want to use and the system shoud not interfere in any way. Albeit
it looks like there is some weird interferences for some applications.
The new libpng libraries don't lack any functional things as I would say
the 1.2 are old freezed version receiving only security updates. The
matter is that png_struct and png_info data are no more in header files
(for devel) and that the source code of applications has to be adapted
to this reality using png_get_xxx() and png_set_xxx() accessor
functions. Some applications developpers refused to do and locked down
the libnpg shared library to the 1.12 version.

Here is the result of

$ sudo ldconfig -v > ldconfig-v.log

attached. Both libpng libraries are visible in the log.

Here is a summary of what I have done about libpng in my system.
------------------------------------------------------------------------------------------
I have set the libpng16 in /usr/lib/ (this is the default from compiling the tarball) and made sym links to /usr/lib/x86_64-linux-gnu

Compiled package libpng16-0_1.6.2-0ubuntu0_amd64.deb
------------------------------------------------------
Installed Files
---------------
/usr/bin/libpng-config			---> symbolic link to libpng16-config
/usr/bin/libpng16-config
+/usr/include/libpng			---> symbolic link to libpng16
/usr/include/libpng16
/usr/include/libpng16/png.h
/usr/include/libpng16/pngconf.h
/usr/include/libpng16/pnglibconf.h
/usr/include/png.h			---> symbolic link to libpng16/png.h
/usr/include/pngconf.h			---> symbolic link to libpng16/pngconf.h
/usr/include/pnglibconf.h		---> symbolic link to libpng16/pnglibconf.h
/usr/lib/libpng.a			---> symbolic link to libpng16.a
/usr/lib/libpng.la
/usr/lib/libpng.so			---> symbolic link to libpng16.so
/usr/lib/libpng16.a
/usr/lib/libpng16.la
/usr/lib/libpng16.so			---> symbolic link to libpng16.so.16.2.0
/usr/lib/libpng16.so.16			---> symbolic link to libpng16.so.16.2.0
/usr/lib/libpng16.so.16.2.0
/usr/lib/pkgconfig
/usr/lib/pkgconfig/libpng.pc		---> symbolic link to libpng16.pc
/usr/lib/pkgconfig/libpng16.pc
/usr/share/man/man3
/usr/share/man/man3/libpng.3.gz
/usr/share/man/man3/libpngpf.3.gz
/usr/share/man/man5
/usr/share/man/man5/png.5.gz

I did add a symbolic link named libpng12.so.0 ---> libpng.so
----------------------------------------------------------------
$ cd /usr/lib/
$ sudo ln -s libpng.so libpng12.so.0

Package libpng12-0 (Official Ubuntu)
------------------------------------
libpng12-0		1.2.46-3ubuntu4		PNG library - runtime

Installed Files
---------------
/lib/x86_64-linux-gnu/libpng12.so.0  		---> symbolic link to libpng12.so.0.46.0
/lib/x86_64-linux-gnu/libpng12.so.0.46.0
/usr/share/doc-base/libpng12
/usr/share/doc/libpng12-0
/usr/share/doc/libpng12-0/ANNOUNCE
/usr/share/doc/libpng12-0/KNOWNBUG
/usr/share/doc/libpng12-0/README.Debian
/usr/share/doc/libpng12-0/README.gz
/usr/share/doc/libpng12-0/TODO
/usr/share/doc/libpng12-0/changelog.Debian.gz
/usr/share/doc/libpng12-0/copyright
/usr/share/doc/libpng12-0/libpng-1.2.46.txt.gz

Pacakge libpng12-dev (Official Ubuntu)
--------------------------------------
libpng12-dev		1.2.46-3ubuntu4		PNG library - development

Installed Files
---------------
/usr/bin/libpng-config			---> symbolic link to libpng12-config
/usr/bin/libpng12-config
/usr/include/libpng			---> symbolic link to libpng12
/usr/include/libpng12
/usr/include/libpng12/png.h
/usr/include/libpng12/pngconf.h
/usr/include/png.h				---> symbolic link to libpng12/png.h
/usr/include/pngconf.h				---> symbolic link to libpng12/pngconf.h
/usr/lib/x86_64-linux-gnu/libpng.a		---> symbolic link to libpng12.a
/usr/lib/x86_64-linux-gnu/libpng.so		---> symbolic link to libpng12.so
/usr/lib/x86_64-linux-gnu/libpng12.a
/usr/lib/x86_64-linux-gnu/libpng12.so		---> symbolic link to /lib/x86_64-linux-gnu/libpng12.so.0
/usr/lib/x86_64-linux-gnu/pkgconfig
/usr/lib/x86_64-linux-gnu/pkgconfig/libpng.pc	---> symbolic link to libpng12.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/libpng12.pc
/usr/share/doc/libpng12-dev
/usr/share/doc/libpng12-dev/changelog.Debian.gz	---> symbolic link to ../libpng12-0/changelog.Debian.gz
/usr/share/doc/libpng12-dev/copyright
/usr/share/doc/libpng12-dev/examples
/usr/share/doc/libpng12-dev/examples/example.c.gz
/usr/share/doc/libpng12-dev/examples/pngtest.c.gz
/usr/share/doc/libpng12-dev/examples/pngtest.png
/usr/share/man/man1
/usr/share/man/man1/libpng-config.1.gz		---> symbolic link to libpng12-config.1.gz
/usr/share/man/man1/libpng12-config.1.gz
/usr/share/man/man3
/usr/share/man/man3/libpng.3.gz
/usr/share/man/man5
/usr/share/man/man5/png.5.gz

At the moment I have no experience in forcing LD to look at alternative
path at compile time. I will give it a try may be.

** Attachment added: "$ ldconfig -v"
   https://bugs.launchpad.net/ubuntu/+source/banshee/+bug/1191195/+attachment/3704867/+files/ldconfig-v.log

-- 
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https://bugs.launchpad.net/bugs/1191195

Title:
  Cannot launch banshee: Unhandled Exception:
  System.DllNotFoundException: libgtk-x11-2.0.so.0

Status in “banshee” package in Ubuntu:
  Invalid

Bug description:
  I have the exact same problem as another bug already reported bug
  which has been marked as invalid.

  I strongly disagree with the term Invalid.

  When attempting to launch any version [even superseded ones] of
  banshee [for Precise 12.04 amd64] from the Command Line I get:

  $ banshee
  [...]
  [ERROR] FATAL UNHANDLED EXCEPTION: System.DllNotFoundException: libgtk-x11-2.0.so.0
  [...]
  [ERROR] FATAL UNHANDLED EXCEPTION: System.DllNotFoundException: libgtk-x11-2.0.so.0

  The reported missing library libgtk-x11-2.0.so.0 is part of package
  libgtk2.0-0 (I have as well libgtk2.0-0:i386 installed) and is located
  at the right place. i.e.

  $ locate libgtk-x11-2.0.so.0
  /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
  /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0.2400.10
  /usr/lib/vmware/lib/libgtk-x11-2.0.so.0
  /usr/lib/vmware/lib/libgtk-x11-2.0.so.0/libgtk-x11-2.0.so.0
  /usr/lib/vmware-installer/2.1.0/lib/lib/libgtk-x11-2.0.so.0
  /usr/lib/vmware-installer/2.1.0/lib/lib/libgtk-x11-2.0.so.0/libgtk-x11-2.0.so.0
  /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0.2400.10
  $ 

  The logs from strace and MONO_LOG_LEVEL are similar the earlier
  reported bug

  $ strace -e trace=open banshee 2>&1 | grep libgtk-x11-2.0.so.0\"

  $ MONO_LOG_LEVEL=debug banshee

  What is amazing in the MONO_LOG_LEVEL is the reporting of fictuous
  libraries not found i.e.

  /usr/lib/mono/4.0/mscorlib.dll.so: cannot open shared object file: No
  such file or directory

  Well have the .dll file (which is a Windows library extension type). I
  have never seen before a .dll.so (mixture of Windows and Linux library
  ?).

  Anyway I did have OpenGL installed and as well mesa (libgl1-mesa*
  packages).

  My Ubuntu 12.04 is properly functioning and obviously I have a lot of
  application installed. Of all the sound player installed only Banshee
  is unable to launch ...

  There is obviouly something wrong with this application.

  I am ready to provide further information upon request.

  In the mean time I will remove this application to avoid being annoyed
  by non functional updates from Ubuntu Updates required now a partial
  upgrade ...

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