Error in HRFORM Infonet-Generation

I have created a new MetaDimension (contains only key-fields, option always read with MetaStar is active) and added it to a new MetaStar (Type: Payroll). Both objects pass the check in the MetaNet builder.

When I want to use this MetaStar in my Infonet and try to activate it, I get the following error message:

Generated DDIC structures for dimension ZMY_DIMENSION contain errors

(Message no. HRFORMS012)

Diagnosis

Line type /1PYXXFO/ZNPY_EG_________L0002 and table type /1PYXXFO/ZNPY_EG_________T0002 were not created or activated.

Do you have any ideas what might be the reason for this error?

Thanks for your support in advance!

Andreas