Sometimes, when you try to install a program or a package from its source code, you might end up getting an error which looks like :
“error while loading shared libraries: cannot open shared object file No such file or directory”
In general, if the package shared library name is lib, the error sometimes shows the following :
“error while loading shared libraries: lib.so.X: cannot open shared object file: No such file or directory “
Where X is a number.
These dynamically generated shared libraries, which are required by executables, are stored under /lib or /usr/lib directories.
The command below can help find out the libraries that are needed for a given executable :
As a quick workaround, you could try to fix the issue by running ldconfig command below :
sudo ldconfig -v
Now at runtime, the system would need to locate the ‘.so’ corresponding library file since the package or the program is linked with the library shared version.
To locate the library, invoke the command below :
sudo find / -name lib_file.so.x
or you could use apt search command. Jot down the path in which the lib_file.so.x is found, path_to_so_file.
To include the folder in which the library is installed, the shell variable LD_LIBRARY_PATH has to be provided.
If LD_LIBRARY_PATH is not defined (run echo $LD_LIBRARY_PATH to find out), you could set it using the command (in the Bash shell) :
Now using the path of the .so file that you found above, path_to_so_file, run the commands below :
export LD_LIBRARY_PATH $ ./your_package
You can find out more about shared libraries here.
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