Hi thanks for reporting the bug.
The solution is to replace the line:
throw new RuntimeException("INVALID SUPPORT - THIS SHOULD NOT HAPPEN BECAUSE ALL ITEMSETS HAVE TO BE FREQUENT"
with
return 0;
in the class : AlgoAgrawalFaster94.java located in the package:
ca.pfv.spmf.algorithms.associationrules.agrawal94_association_rules;
This bug was introduced recently when I have revised the code for association rule generation to improve its performance.
I will update the source code on the website with this fix.
If you want that I put your name on the contributor page of the webiste for reporting this bug, let me know your name and i will put it.
Thanks.
Philippe