Summary

This article will explain how to overcome the error Input parameter hostId of TrustedHostEntityBO.createTrustedHostEntityBO cannot be null.

Symptoms

When performing a manual return in Flexnet Operations (FNO) the following error is displayed:

• Input parameter hostId of TrustedHostEntityBO.createTrustedHostEntityBO cannot be null

Cause

This is caused by another activation on the same machine overwriting the same trusted ID value, for example:

If two different instances of FNO (both using separate databases) are used to activate two entitlements on the same machine, then both transaction keys could be using the same trusted ID. So when activating the second entitlement it would overwrite the existing trusted ID with the new one.

Resolution

Created a new transaction key and make sure the trusted ID's are not the same.