Antlr 错误(211):[fatal]规则条件具有非LL(*)

Antlr 错误(211):[fatal]规则条件具有非LL(*),antlr,grammar,antlr3,antlrworks,Antlr,Grammar,Antlr3,Antlrworks,我使用ANTLR创建语法,但我得到了这个错误 error(211): [fatal] rule conditions has non-LL(*) decision due to recursive rule invocations reachable from alts 1,2. Resolve by left-factoring or using syntactic predicates or using backtrack=true option. 我的语法规则: conditions

我使用ANTLR创建语法,但我得到了这个错误

error(211): [fatal] rule conditions has non-LL(*)  decision due to recursive rule invocations reachable from alts 1,2.  Resolve by left-factoring or using syntactic predicates or using backtrack=true option.
我的语法规则:

conditions
    :    '(' conditions ')' 
    |     condition (C_BINARY_OPERATOR conditions)?   
    ;
condition
    :   expression C_CONDITIONAL_OPERATOR expression
    ;

expression
    :   (term) (('+'|'-')  term)*
    ;

term
    :   (factor) (('*' | '/') factor)*
    ;

factor
    :   C_ID
    |   C_NUMBERS
    |   '(' expression ')'
    ;

// Binary Operators for Logical Calculation 
C_BINARY_OPERATOR
    :   '&&'
    |   '||'
    ;

// Conditonal Operators
C_CONDITIONAL_OPERATOR
    :   '>'
    |   '<'
    |   '=='
    |   '!='
    |   '=<'
    |   '=>'
    ;
条件
:“(“条件”)”
|条件(C_二进制_运算符条件)?
;
条件
:表达式C_条件_运算符表达式
;
表达
:(术语)((“+”|“-”)术语)*
;
学期
:(系数)((“*”|“/”)系数)*
;
因素
:C_ID
|C_数
|“(“表达式”)”
;
//用于逻辑计算的二进制运算符
二元算子
:   '&&'
|   '||'
;
//条件算子
C_条件_算子
:   '>'
|“嗯,错误的确是说“通过左因子分解或使用语法谓词或使用backtrack=true选项来解析”。这令人困惑吗?

请参见ANTLR网站上的内容。它包含有关如何修复错误的信息