Ruixiang Du

How to fix ' not found' error on Ubuntu 12.04

Reference:Gazebo Answers

With ROS Groovy installed on Ubuntu 12.04, I was trying to install Gazebo simulator. I followed instructions on this page: Following Compile Instructions, gazebo was installed in the default directory, but step 11 gave the error:

$ gazebo
gazebo: error while loading shared libraries: cannot open shared object file: No such file or directory

From the Gazebo Answers website, I found the solution to this problem provided by gerkey. It seemed the original link for this ask-and-answer post was broken and only a cached paged by google could be visited. Since this post solved my problem, I copy it here for future reference:


sudo bash -c "echo /usr/local/lib >> /etc/"
sudo ldconfig

First, let’s understand the situation:

ldd `which gazebo` | grep "not found"

That will give you a list of the libraries that the executable needs, but that the loader can’t find. Probably will be in that list, likely along with many other lib_gazebo* libraries.

If you did a default install, it went into /usr/local. By default, your system loader might be configured not to look in /usr/local/lib. To test that, add that directory to your LD_LIBRARY_PATH:

LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH ldd `which gazebo` | grep "not found"

If that gives you an empty list, then you’re ready to go, in which case you run gazebo like so:

LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH gazebo


export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

But it’s better not to have to remember that. So you can configure your system to look in /usr/local/lib for libraries:

sudo bash -c "echo /usr/local/lib >> /etc/"
sudo ldconfig

That should work for gazebo and for anything else that you install to /usr/local.