Error : After uploading PAR file

Hai All,

We are using Enterprise Portal 5.5. We have customized the user login flow into the system in such a way if the password is going to expiry then prompt is given when the user tries to login to system. This functionality was uploaded into portal as a PAR file.

Now we have a change to this so i downloaded the PAR file from portal and unpacked it and did the changes using IntelliJ. Finally i packed the files as a PAR file(I didn't use PDK 5.0 to pack the file) and uploaded into portal. The upload was successfull.Then i tried to login into portal i am getting the following error message. Can you please let me know,how to solve this issue.

Caused by: java.lang.ClassNotFoundException: abcd.EP.EPLogin

at com.sapportals.portal.prt.util.AutoClassLoader.loadClass(AutoClassLoader.java:804)

at com.sapportals.portal.prt.util.AutoClassLoader.loadClass(AutoClassLoader.java:817)

at java.lang.ClassLoader.loadClass(ClassLoader.java:250)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:190)

at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getInstanceInternal

Thanks & Regards,

Basha