alterad: error while loading shared libraries: libiberty.so: cannot open shared object file: No such file or directory - alterad: error while loading shared libraries: libiberty.so: cannot open shared object file: No such file or directory Description To work around this problem, modify the LD_LIBRARY_PATH environment variable to include the appropriate platform directory in your Quartus ® II software installation (< Quartus II installation directory >/< platform >) before you start the license server. The platform directory is one of the following: linux solaris hp11 For example, if you run alterad on Linux, and the Quartus II software is installed in /opt/quartus , the directory you must add to the LD_LIBRARY_PATH is /opt/quartus/linux . Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']