Migrated storefront throws Server Error but log shows no error

[Former Member]

I'm migrating from a Hybris 5.2 to Hybris 6.5, so far we managed to get rid of compilation errors and erros when running the server, but so far we have been unable to access the storefront.

When we try to access it we get a server error, but the log doesn't show anything that gives us a hint. Even the Chrome console doesn't show any info. I attach the logs generated from the ant clean all and the hybris server startup. I zipped the Logs in this link

I have even debugged the home page controller, but no exceptions are being thrown, and my guesses are small since I have no feedback on the possible issue at hand.

What do we have to look at in these kind of situations? Is there a way to track the issue? Any tool in Hybris or an external one that could help me sniff the problem?

10358-logs.zip

[Former Member]

Does this help? https://answers.sap.com/questions/12762747/server-error-on-accessing-website.html

[Former Member]

Hi, The recommended way to migrate is to migrate only to the next version. But this can be tedious and you want to speed up this. So it would be good to do some intermediate steps. E.g. first migrate to 5.5.1, because this will involve the change from Java 7 to 8. Then to 5.7, 6.0, 6.1 and then to 6.5. It is also mandatory that you read and follow all upgrade information e.g. for the upgrade from 5.7 to 6.0 look at https://help.hybris.com/6.0.0/hcd/8be8ff7d866910149618f66c130dab3d.html, but you need also to follow the other upgrade guides 5.2 -> 5.3, 5.3 -> 5.4, 5.4 -> 5.5, ...