Symptoms

An error "an error occurred when opening the file ***" is thrown when opening a digital document.

Cause

Absence of required libraries specified in the "Workstation requirements → Other software components" section of the FineReader Engine's System Administrator's Guide

Resolution

Install the required libraries:

1. libx11-6 package (libX11.so.6);
2. libfreetype6 package (libfreetype.so.6);
3. libxext-dev package (libXext.so.6);
4. libice-dev package (libICE.so.6);
5. libsm-dev package (libSM.so.6).