I am getting the error message below when trying to run a form in Oracle Form Builder:
FRM-10142: The HTTP Listener is not running on DESKTOP-AF3LCH5.lan (port 9001) . Please start the listener or check your runtime preferences.
In order to fix that, I have installed Oracle jDeveloper Studio as I found in the documentation on the link below that OC4J (that is provided with JDeveloper) needs to be installed first:
https://download.oracle.com/otn_hosted_doc/jdeveloper/1012/web_services/dep_wsoc4j.html
However, I couldn't find the folder named "home" on this path: <JDeveloper_home>/j2ee/home.
Any idea how to fix it?
Refer to my answer to your question here: