flink报错：The types of the interface org.apache.flink.util.OutputTag could not be inferred.

flink报错：The types of the interface org.apache.flink.util.OutputTag could not be inferred.

测试flink报错如下：

The types of the interface org.apache.flink.util.OutputTag could not be inferred. Support for synthetic interfaces, lambdas, and generic or raw types is limited

解决方案：

在流打标签分类时，创建标签时加上标签的类型