Error java.lang.NoClassDefFoundError: org/apache/curator/RetryPolicy when dubbo+zookeeper is built

Tell me about my environment:

　　jdk1.8

　　dubbo2.6.1

　　zookeeper3.4.10

　　maven3.3.9

 

Error when building demo: java.lang.NoClassDefFoundError: org/apache/curator/RetryPolicy

　　NoClassDefFoundError is generally a problem of missing jar package dependencies

So you can add the corresponding maven dependencies, here is the lack of curator framework dependencies

       <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-framework</artifactId>
        <version>4.0.1</version>
    </dependency>