One or more shared libraries are not installed. The solution is to ensure that all prerequisite libraries are installed.
First, use the “ldd” command to show what libraries SecAst needs, and are available. You should see something like this:
root@pbx~$ ldd secast-0.345.3.0-x86_64-ub12/secast
linux-vdso.so.1 => (0x00007ffffbded000)
libQt5Sql.so.5 => not found
libQt5Xml.so.5 => not found
libQt5Network.so.5 => not found
libQt5Core.so.5 => not found
libpthread.so.0 => /lib/x86_64-linuxgnu/
libpthread.so.0 (0x00007ff6b71c4000)
libstdc++.so.6 => /usr/lib/x86_64-linuxgnu/
libstdc++.so.6 (0x00007ff6b6ec3000)
libgcc_s.so.1 => /lib/x86_64-linuxgnu/
libgcc_s.so.1 (0x00007ff6b6cad000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6
(0x00007ff6b68ed000)
/lib64/ld-linux-x86-64.so.2 (0x00007ff6b73ef000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6
(0x00007ff6b65f0000)
Based on the response shown in your case, you will have to add the missing libraries (normally through your package manager like apt-get or yum). In the above example case, the Qt libraries are missing; see section 5 of the instructions for details on how to add the Qt libraries.