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I am new to Yawl. I have successfully installed the Yawl and is able to start YAWL engine and YAWL editor. But when I try to access the JSP (http://localhost:8080/resourceService/faces/Login.jsp), the only error I can see is Unable To Connect. localhost:8080 is not showing the tomcat home page as well. The login button is also disabled in Yawl Control Panel.

It seems that tomcat service is not started by default with the Yawl engine.

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Zulqarnain
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1 Answers1

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Solution1

Try downloading the latest version of the control panel jar from:

http://sourceforge.net/projects/yawl/files/updatecache/engine/controlpan...

Replace the one in /controlpanel and see if that goes any better.

Solution2

I found a way to start the Engine.

1)First i try to start the "startup.bat" and i get this on my screen: "The JRE_HOME environment variable is not defined correctly. This environment variable is needed to run this program."

2)I add this lines in the startup.bat (YAWL-3.0\engine\apache-tomcat-7.0.55\bin , open it with Notepad and change the XXX text part with your path ):

SET JRE_HOME=C:\Program Files\Java\jdk1.8.0_25\jre
SET CATALINA_HOME=C:\Users\xxx\Documents\YAWL-3.0\engine\apache-tomcat-7.0.55
SET TCPORT=8080

SET CHECKPORTRESULT_FILE=C:\Users\XXXX\AppData\Local\Temp\chckprtrslt "%JRE_HOME%\bin\java.exe" -cp "%MISC_PATH%" CheckPort %TCPORT% > "%CHECKPORTRESULT_FILE%" SET /p TC_LISTEN= < "%CHECKPORTRESULT_FILE%" DEL "%CHECKPORTRESULT_FILE%"

3) Now start the YAWL 3.0 Control Panel an click on "Start" (its still staying "Engine is Starting" in yellow 4) If you start now the "Startup.bat"

Reference: http://www.yaug.org/content/tomcat-doesnt-start-yawl-engine

Zulqarnain
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