Class not found when running plugin

Hi there. I added an action to my plugin and when I tested it, I got this:

Caused by: java.lang.ClassNotFoundException: com.github.jwpjrdev.betterimportplugin.actions.ImportAction PluginClassLoader[PluginDescriptor(name=better-import-plugin, id=com.github.jwpjrdev.betterimportplugin, path=/Users/joshua/Desktop/better-import-plugin/build/idea-sandbox/plugins/better-import-plugin, version=0.0.1)] com.intellij.ide.plugins.cl.PluginClassLoader@4fd64a7c

This is what I have in plugin.xml (generated by IntelliJ):

<actions>
    <action id="com.github.jwpjrdev.betterimportplugin.actions.ImportAction"
            class="com.github.jwpjrdev.betterimportplugin.actions.ImportAction" text="ImportAction"
            description="Triggered when the import hotkey is ran">
        <keyboard-shortcut keymap="$default" first-keystroke="shift meta O"/>
    </action>
</actions>

And all the action does is listen to AnActionEvent via actionPerformed and print a string to console.

Thoughts?