[GAP Forum] unsupported functions in new release (4.4.10)

[R.N. Tsai]

Dear gap forum,
 
I just installed the latest version of gap4 (4.4.10) and tried it
with some old code (which worked with previous versions).

It looks like the following two functions are no longer supported :
 
 FromTheLeftCollector
 PcpGroupByCollector
 
I get this error :
 " Syntax error: warning: unbound global variable ..."
 
Are there equivalent functions in the new release or workarounds?
Thanks,
R.N.