Port conflict error when trying ot run the page.

Question

Hi ,
Below is the error message whern I try to run the page.How to resolve it.
I tried checking tools->preferences->embedded oc4j->Host name to default local ip address and local host name
Another trial was : open Task Manage ->Process tab..if there will be two process jdevw and javaw. Terminated those process and then start JDeveloper and run the page,it should work , but i could find only java.exe running.
Appreciate your help.Thanks.
**** JMS port conflict detected. The JMS port will be reassigned to port 9236.
[Starting OC4J using the following ports: HTTP=8995, RMI=23892, JMS=9236.]
D:\MC\oajdev\jdevbin\jdk1.4.2\bin\javaw.exe -client -classpath D:\MC\oajdev\jdevbin\j2ee\home\oc4j.jar;D:\MC\oajdev\jdevbin\jdev\lib\jdev-oc4j.jar -Xbootclasspath/p:D:\MC\oajdev\jdevbin\jdev\appslibrt\ojdbc14.jar;D:\MC\oajdev\jdevbin\jdev\appslibrt\nls_charset12.zip -DFND_JDBC_STMT_CACHE_SIZE=200 -DCACHENODBINIT=true -DRUN_FROM_JDEV=true -mx256m -Xverify:none -Doracle.j2ee.dont.use.memory.archive=true -Doracle.j2ee.http.socket.timeout=500 com.evermind.server.OC4JServer -config
D:\MC\oajdev\jdevhome\jdev\system9.0.3.5.1312\oc4j-config\server.xml
[waiting for the server to complete its initialization...]
Fatal Error: Unable to write to the transaction log (/D:/MC/oajdev/jdevhome/jdev/system9.0.3.5.1312/oc4j-config/log/transaction.state), possible reasons for this are that Orion lacks permission to write to the file, or that another instance of the server is already running with this configuration (most common): Unable to alter transaction log
Process exited with exit code 1.

Answer 1

You have other JDev session running.
Probably your first JDev session was not terminated gracefully.
Close ALL JDev sessions. Go to Task Manager and kill any process related to JDev.
Then open JDev again. You should not get this error message again.
PS. Despite of this message, you will be able to continue with your work.