"webbrowser-app: error while loading shared libraries: libGL.so.1: cannot open shared object file: No such file or directory" error when attempting to launch webbrowser-app

[Wise Melon]

I have recently found that on Ubuntu 16.04 (in a 64-bit VirtualBox VM) that the webbrowser-app application does not start when launched from the launcher (it flashes for a little bit but then stops and does nothing else). If I however try to launch it from Terminal I get:

    webbrowser-app: error while loading shared libraries: libGL.so.1: cannot open shared object file: No such file or directory

This may be related to bug #1573762 but note that this was in a VM and that I have Intel drivers.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: webbrowser-app 0.23+16.04.20160413-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Sun Apr 24 17:08:51 2016
InstallationDate: Installed on 2016-04-23 (1 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: webbrowser-app
UpgradeStatus: No upgrade log present (probably fresh install)

[Olivier Tilloy (osomon)]

Is the package libgl1-mesa-glx not installed in your VM?
Does installing it fix the issue?

[Wise Melon (wise-melon-deactivatedaccount)]

Yes, that package is already installed on the VM.

[Olivier Tilloy (osomon)]

And is that file available in the VM?

    /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1

Can you maybe try re-installing libgl1-mesa-glx in case it got corrupted?

    sudo apt-get install --reinstall libgl1-mesa-glx

[Wise Melon (wise-melon-deactivatedaccount)]

I have checked and that file is present:

    lrwxrwxrwx 1 root root 14 Apr 23 12:42 /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 -> libGL.so.1.2.0

I have tried reinstalling it with the command you gave and it reinstalled successfully, however the error when webbrowser-app is run remains the same.

[Olivier Tilloy (osomon)]

Do other GL-enabled applications work in your VM? Try e.g. glxgears.

[Wise Melon (wise-melon-deactivatedaccount)]

Well, glxgears runs fine without error.

[Olivier Tilloy (osomon)]

Does a simple QML scene with a WebView launch in that VM?
You can save the following code snippet as test.qml and run it with `qmlscene test.qml`:

 import QtQuick 2.4
 import com.canonical.Oxide 1.12
 WebView {
  url: "http://example.org"
 }

[Wise Melon (wise-melon-deactivatedaccount)]

The output of running that is:

    file:///home/tester/test.qml:2 module "com.canonical.Oxide" version 2.12 is not installed

And then it just exits.

[Olivier Tilloy (osomon)]

this should be "import com.canonical.Oxide 1.12", not "2.12". Can you please test again with the correct version?

[Wise Melon (wise-melon-deactivatedaccount)]

Right, sorry, don't know how that mistake got in there, but with the correct version it doesn't really work that much better. I see a small black box (I adjusted the URL to a proper one) which upon being enlarged does a while flashing stairs like pattern and flashes the top and right side when I try to enlarge it. It also shows me the clicking cursor when I go over it but upon clicking it the only thing that seems to change is that when I mouse over different parts of it the cursor changes to different things (e.g.: normal and text cursor mode). I assume that this is because it is providing an interactive experience with the website it's just only showing black instead of the site? I don't know, anyway, throughout the time it was active this was the output (the last line got outputted when I closed the window in the standard way with the little cross):

[0504/191704:ERROR:zygote_host_impl_linux.cc(162)] Failed to adjust OOM score of renderer with pid 2332: Permission denied
OpenGL Warning: glXCreatePbuffer not implemented by Chromium
[0504/191705:ERROR:layer_tree_host_impl.cc(2218)] Forcing zero-copy tile initialization as worker context is missing
[0504/191705:ERROR:buffer_manager.cc(361)] [.CommandBufferContext.Context-For-Testing-0x1391870]GL ERROR :GL_INVALID_ENUM : glBufferData: <- error from previous GL command
[0504/191711:ERROR:texture_manager.cc(2421)] [.CommandBufferContext.RenderCompositor-0x3e5f51043780]GL ERROR :GL_INVALID_ENUM : glTexImage2D: <- error from previous GL command
[0504/191711:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_ENUM : GLES2DecoderImpl::DoBindTexImage2DCHROMIUM: <- error from previous GL command
[0504/191711:ERROR:gles2_cmd_decoder.cc(2138)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_OPERATION : ScopedTextureBinder::ctor: was unhandled
[0504/191711:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
[0504/191711:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
[0504/191711:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
[0504/191711:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
[0504/191712:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
[0504/191713:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
[0504/191713:ERROR:gles2_cmd_decoder.cc(2134)] [.CommandBufferContext.RenderWorker-0x3e5f51043900]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL c...

[john (johnmont955)]

simple QML scene runs fine here but same error on webbrowser-app

webbrowser-app: error while loading shared libraries: libGL.so.1: cannot open shared object file: No such file or directory

glxgears is fine

any quick fix for this?

[Olivier Tilloy (osomon)]

That looks like a confinement issue.
Could you please check if there are apparmor denials when you run webbrowser-app? You can monitor that from another terminal window with:

  tail -F /var/log/syslog | grep DEN

If there are denials, please paste them in this bug report. Thanks!

[Olivier Tilloy (osomon)]

And I forgot to ask… John, which version of ubuntu and webbrowser-app do you have?