openLCA archived user forum

Hi Andreas
I validated the database and it shows that everything is okay.

Hello everyone. I am new in modelling and programming. Can someone help me here, when i try to calculate product system i always get a message which reads " unexpected error has occurred- formulation evaluation failed, exchange 282817". i am using openlca 1.6.3 version. thank you

i also have the similar problem. why do we have emissions in the input section rather than more resources?

Thanks

Good morning. Iam also having a problem with removing exchanges in OpenLCA 1.6. Anyone who can help?
Tah