I haven’t tried the course but last time i worked with deploying Storm mistakes in my Maven pom.xml meant that the twitter4j.properties configuration with the keys was not properly included as a resource in the jar.
Other issues included old or conflicting versions of Twitter4J: Make sure you have
<version>[4.0,)</version> for twitter4j-core and twitter4j-stream
in your pom.xml NOT <version>[3.0,)</version> like it has on the old repo https://github.com/udacity/ud381