== Errors on Dao.DBengine ==
 * If the core fails to compile on Dao.DBengine, your system does not have the Microsoft Office 2007 interoperabilty assemblies installed that are needed to compact ACCDB databases. Download the assemblies from [http://go.microsoft.com/fwlink/?LinkId=72637 the Microsoft website] and install.

== !BadImageFormatException was unhandled ==
 * Close VS and clear debug/release folder. 

== !InvalidOperationException was unhandled ==
 * x64 Application links to EwECore.  Set all applications to x86: Build>Configuration Manager>Set all to x86 (new if not listed). See [https://sources.ecopath.org:8443/trac/Ecopath/attachment/wiki/ScientficInterfaceKnownCompileErrorsFaq/Configuration%20Manager%20x86.png image].