Could not load type from assembly

[tszklen]

SL 7.5.4 Web: Created a new navigation page for a new entity/table.  It has a new child table associated with it.  The Detail form does NOT have the subtable referenced and there are no tabs or other forms.  When I try to open the entity via the Nav Bar I get an error

Could not load type 'Sage.Entity.Interfaces.ISubTable' from assembly

All reference links seem to be OK.

[dlibert]

Try to delete the website. Make a full deploy (ctrl + green button)

[tszklen]

Deleted web site and did full rebuild and deploy. Still get same error.

[CRS-AOttberg]

Sometimes it helps to delete the build path and rebuild.

Could there be any relationships to not existing entities?

[dlibert]

You can try in AA to click on Tools => Copy Assemblies

[tszklen]

I am having the same problem.  Did any of these work?