I am using FUZZYLITE 5.0 registered version to implement a java program and facing a problem to sending multiple brackets with and/or operators.As you mentioned I added jfuzzylite-5.01.jar file to my eclipse project as external jar.But still same error is sending from the code.
ruleBlock1.addRule(Rule.parse(“if Q1.1 is NO and (Q1.2 is YES or Q1.2 is AVERAGE) then rel_home_out is AVERAGE”, engine));
sometimes the Maven repository is funny. Could you please make sure that you are using the 5.01 jar file and not the 5.0? You can do so by erasing the com/fuzzylite/ folder from your repository (e.g., in linux ~/.m2/repository/).
In addition, if you post your FLL code, there could be an error there too.