使用模板报错

javacxy

Expression primary_key_type is undefined on line 124, column 42 in serviceImplTemplate.ftl.
The problematic instruction:
----------
==> ${primary_key_type} [on line 124, column 40 in serviceImplTemplate.ftl]
----------

Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression primary_key_type is undefined on line 124, column 42 in serviceImplTemplate.ftl.
        at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)
        at freemarker.core.Expression.getStringValue(Expression.java:118)

---------------------------------------------------
/**
         * 获得
         *
         * @param ${jeecg_table_id}
         * @return
         */
        public ${entityName}Entity get(${primary_key_type} ${jeecg_table_id});
       
        /**
         * 获取所有数据
         */
        public List<${entityName}Entity> listAll(${entityName}Page ${entityName?uncap_first}Page);

}

工程跑起来，使用模板报错，求解决，困扰好几天了！谢谢！！！！！