Stacktrace:
The data of the attachment is empty.
class com.aspose.email.system.exceptions.InvalidOperationException: The data of the attachment is empty.
com.aspose.email.MapiAttachment.b(SourceFile:571)
com.aspose.email.MapiAttachment.e(SourceFile:930)
com.aspose.email.MapiCalendar.a(SourceFile:1354)
com.aspose.email.MapiCalendar.e(SourceFile:1266)
com.aspose.email.MapiCalendar.a(SourceFile:1193)
com.aspose.email.zas.a(SourceFile:90)
com.aspose.email.MapiMessage.toMailMessage(SourceFile:2129)