Error running ascat.pl?

[vymao]

Hi,

I have two questions:
I tried running the Perl script to generate ascat input files, but I get this error message:

IPC::System::Simple required for Fatalised/autodying system() at ascat.pl line 32. main::BEGIN() called at ascat.pl line 32 eval {...} called at ascat.pl line 32 BEGIN failed--compilation aborted at ascat.pl line 32.

Is this a dependency error or something else?

Also, I looked at the Perl script itself and noticed this parameter as an input:
-protocol -pr Sequencing protocol (e.g. WGS, WXS)

I thought ascat doesn't support WXS? If not, why is this an option?