[rules-users] help! rule"rule_key" failed to predicate

[赵慧]

hi,thank you very much for helping me with the problem.nevertheless,I have got another error. I compile the program and get the errors as follows:
[4,0]: [ERR 103] Line 4:0 rule 'rule_key' failed predicate: {(validateIdentifierKey(DroolsSoftKeywords.RULE))}? in rule
[4,9]: [ERR 101] Line 4:9 no viable alternative at input 'com' in rule package
 
I don't know how it happened, looking forward to your reply! thank you !!!







> Try adding 'dialect "mvel"' (no single quotes) after the rule name to the top of each of the rules.  I have seen this error before and doing this resolved the issue. 
>  
> >hello,everyone!I wrote a rule with Drools,but the error told me that the field Server.Message is not visible, I can't find how it happens. Please  
> >help me, I am almost exhausted with it. thank you. 
> >the rules are as follows: 
> >  
> >package com.sample 
> >import com.sample.Server; 
> >  
> >rule "system will execute 'tc' command" 
> > when 
> >    eval(Server.Message>8388608) 
> > then  
> >     System.out.println("The network is so crowd that it needs repairing."); 
> >  Runtime.getRuntime().exec("tc");#execute the "tc" command end 
> >  
> >rule "caution" 
> >    when  
> >        eval(Server.Message==8388608) 
> >    then  
> >        System.out.println("caution!The network maybe will get blocked very soon."); end  
> >  
> >rule "fluent network" 
> >  when 
> >  eval(Server.Message<8388608)#conditions 
> > then 
> >  System.out.println("the current network is very good"); 
> >  #actions  
> >end 
>   
>  
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>  

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