When installing the FineReader Engine library using the RPM package on Ubuntu, the exception is thrown:
$ rpm -i FREngine-<version>.x86_64.rpm
error: Failed dependencies:
glibc >= 2.11 is needed by FREnglne-12.4.7-1122.x86_64
/bin/sh is needed by FREnglne-12.4.7-1122.x86_64
RPM packages are not meant to be installed on Ubuntu in a direct way, so you need to use a special tool like Alien.
$ sudo apt-get install alien
$ sudo alien -i FREngine-<version>.x86_64.rpm