Refer to http://forums.devart.com/viewtopic.php?t=22092 .
If this doesn't help, please specify:
- are you working with ADO.NET Entity Data Model (.edmx) or Devart Entity Model (.edml)?
- the value of your model file's Build Action property
- the value of the Metadata Artifact Processing property of your model
- the build number (x.xx.xxx) of your dotConnect for Oracle
- the version of your Visual Studio
- follow Pawel's advice to check if resources were embedded in
the assembly