Portal 3.5 to Portal 5.x Migration Error

[Kee Wee Wong]

Hi everyone,

We finally got the go-ahead to upgrade Portal 3.5

After clearing quite a few roadblocks with the upgrade/migration we are quite close to the finishing line.

In the migration tool on Portal 3.5, we are getting quite a lot of errors during the "Enabling Gateway Published REST API" phase and "Creating Account Plan" phase

...

Enabling Gateway Published REST API 'Get Blog Posts' Detail'
ERROR: Error PUT API Get Blog Posts' Detail: Not Found

...
Starting migration for AccountPlans
Creating Account Plan 'Starter Account Plan'
ERROR: Error POST AccountPlans Starter Account Plan: The request could not be completed due to data input errors.
- The API UUIDs have been deprecated and should not be present in payload for the account plan.
Updating Account Plan 'Starter Account Plan'
ERROR: Error PUT AccountPlans Starter Account Plan: 91d347b3-9025-4c47-94f6-031a7172ee23 not found.

...

ERROR: The following script error occured on https://10.22.10.99/template_resources/js/papi-migrator/papi-acct-plan.js?releaseId=1569960367 326:96
ERROR: Uncaught TypeError: Cannot read properties of null (reading 'Uuid')

This is the part I am at a total loss on what to look at.

Does anybody here encountered these errors before?

[Reatesh Sanghi]

Hello Kee Wee Wong,

This would require in depth troubleshooting and it would be better if you can login a support ticket with all the details about your environment as well the errors. 

Thanks,
Reatesh.

[Kee Wee Wong]

Hi Reatesh

As I am doing upgrading from a unsupported version, I don't think support is able to assist me on this.

From what I can tell in the logs, it looks like the portal migration tool is attempting to call the new Portal's PAPI to migrate the API and Plans over.
Eg, 

ERROR: Error PUT API Get Blog Posts' Detail: Not Found

ERROR: Error POST AccountPlans Starter Account Plan: The request could not be completed due to data input errors.

For the Enabling Gateway Published REST API, I am able to see the APIs synced over from the Gateway, so I am not sure why the migration tool is complaining about "Not Found"

For the Creating Account Plan, that I am not really sure why it seems to be attempting to send a deprecated parameter?

As I am not very sure where to look on Portal 3.5 or 5.0.2, I would appreciate if someone can guide me on where to look in details.

Thanks !