the method database is empty

Question

I am currently working on a project
 of DAP in construction products. I follow the manuals and examples of the OpenLCA software. I install the databases and methods (OpenLCA LCIA 1.5.7.)
I have created the processes and product systems. And when it comes to "calculating" I don't get the method database.

Any comments will be highly appreciated.

Thank you

Comments

thank you very much!