When the DefaultValue of a Variable is encoded using OPC UA Binary encoding (i.e. as an XML ExtensionObject with a Base64-encoded ByteString body), UA ModelCompiler fails.
While debugging the issue, adding a null check in the method:
private void SetTypeId(ExtensionObject e, NamespaceTable namespaceUris)
(ModelDesignerValidator.cs)
prevents the failure in this case.
