Using old input db and failed execution

[kristinakjellberg]

Hi,
I am trying to use a model/project that was working fine (for someone else) this spring. I now got warnings when executing:

Warning: The data structure is not the latest version.

Warning: Some items are missing from the input database.

and then the execution failed. I assume that it has something to do with older files and new updates of Spine. I tried to get it to work, and honestly I’m not sure what I did. Now when i try to run any project (for example the Spine tutorials I had working yesterday) it fails with:

ERROR: LoadError: MethodError: no method matching add_to_expression!(::JuMP.GenericAffExpr{SpineInterface.Call, JuMP.VariableRef}, ::SpineInterface.Call, ::JuMP.GenericAffExpr{SpineInterface.Call, JuMP.VariableRef})

So really I have two issues now.

• First, what does the error mean and how can I get the tutorials and my new projects working again?
• Second, is there a way to handle the warning that the data structure is not the latest version, and run the older projects?

Thanks for any advice and please let me know if the information is insufficient!

[kristinakjellberg]

Update: the error disappeared when I updated SpineOpt and SpineInterface (as later described in #718). The warnings remain.