[rules-users] Not able to detect how to correct ERR 102

Below is a sample DSLR code I am trying out. Now I am getting error in "when" block. After hours of trying to search for a solution I have not yet been able to detect the error. package com.sample import com.sample.*; //expander sample.dsl rule "hello rule" when There is a "$customer" with first name "David" // This is where the error is then Greet Customer end [ERR 102] Mismatched input "is" in rule "hello rule" Any idea whats wrong with this line?? -- View this message in context: http://drools.46999.n3.nabble.com/Not-able-to-detect-how-to-correct-ERR-1... Sent from the Drools: User forum mailing list archive at Nabble.com.