Forms server startup error?

Question

I installed R12 (no errors on post-installation check). I was able to login properly without any issues. I can all JSP based pages in R12 but forms pages are throwing the error as attached..
FRM-92101:There was a failure in the Forms Server during startup. Please look into the webserver logs for details
Details:
Java Exception:
oracle.forms.net.ConnectionException:Forms session<3> failed during startup:no response from runtime process.
...

Answer 1

OK. I traced this to not finding the file libXm.so.2 (openmotif?)
Any ideas?
Here is the application.log ----
07/07/19 16:37:53.682 formsweb: Forms session <11> exception stack trace:
oracle.forms.engine.RunformException: Forms session <11> failed during startup:
no response from runtime process
at oracle.forms.servlet.RunformProcess.connect(Unknown Source)
at oracle.forms.servlet.RunformProcess.dataToRunform(Unknown Source)
at oracle.forms.servlet.RunformSession.dataToRunform(Unknown Source)
at oracle.forms.servlet.ListenerServlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.htt
p.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:719)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.htt
p.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:376)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.htt
p.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:870)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.htt
p.HttpRequestHandler.processRequest(HttpRequestHandler.java:451)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.htt
p.AJPRequestHandler.run(AJPRequestHandler.java:299)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.htt
p.AJPRequestHandler.run(AJPRequestHandler.java:187)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSo
cketReadHandler.java:260)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].util.Relea
sableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:3
03)
at java.lang.Thread.run(Thread.java:595)
07/07/19 16:39:45.742 formsweb: Forms session <12> aborted: runtime process fail
ed during startup with errors /r12/oracle/VIS/apps/tech_st/10.1.2/bin/frmweb: er
ror while loading shared libraries: libXm.so.2: cannot open shared object file:
No such file or directory