Spectrum post upgrade script convert_current_myisam_to_innodb.pl fails on line 16:

Failed with the message:
Compilation failed in require at ./convert_current_myisam_to_innodb.pl line 16.
BEGIN failed--compilation aborted at ./convert_current_myisam_to_innodb.pl line 16.

Perl for Linux is provided by the OS.  The most likely reason for failure is that your PERL modules do not support the use of threads.

Edit the convert_current_myisam_to_innodb.pl script. Replace the line that reads:

use threads;

With the following:

use forks;

Rerun the script.