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我有以下 antlr4 语法,我得到相互左递归错误,我该如何解决?

expr : expr_prefix term ;
expr_prefix : expr_prefix term addop
            | () ;
term : factor_prefix factor;
factor_prefix : factor_prefix factor mulop
              | () ;
factor : primary 
       | call_expr ;
primary : ( expr ) 
        | id
        | INTLITERAL
        | FLOATLITERAL ;
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