title: Flink UI for local application setup
body: <p>I have been trying to configure Flink UI for Flink application running locally in IDE. So I've set up relevant dependencies and execution environment. But Flink UI still does not work. What might be the reason of it?</p>
  
  <p>By <a href="http://localhost:8081" rel="nofollow noreferrer">http://localhost:8081</a> there is a message </p>
  
  <pre><code>{"errors":["Not found."]}
  </code></pre>
  
  <p>Execution environment setup:</p>
  
  <pre><code>val conf = new Configuration()
  conf.setBoolean(ConfigConstants.LOCAL_START_WEBSERVER, true);
  val env = StreamExecutionEnvironment.createLocalEnvironmentWithWebUI(conf)
  </code></pre>
  
  <p>Dependency setup in build.sbt:</p>
  
  <pre><code>"org.apache.flink" %% "flink-runtime-web" % "1.9.1"
  </code></pre>