Javascript undefined error for JS Use APIs

sjb1990 16-09-2019

Hi all,

I'm using AEM version 6.3.0.2 and created a component using sightly and JS use API. I keep getting this error. Its the same with other components as well.

org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught SlingException

  • org.apache.sling.scripting.sightly.SightlyException: No JavaScript engine was defined.

at org.apache.sling.scripting.sightly.js.impl.JsUseProvider.provide(JsUseProvider.java:90)

at org.apache.sling.scripting.sightly.impl.engine.extension.use.UseRuntimeExtension.call(UseRuntimeExtension.java:72)

at org.apache.sling.scripting.sightly.impl.engine.runtime.RenderContextImpl.call(RenderContextImpl.java:75)

  at

What could be the reason and how do we fix it? Thanks.