I've only encountered this error three times and each time I'm unsure of what exactly is causing the issue.
Here's the specifics: I'm using the Retrieve email messages action to activate my Outlook and target a folder, then download all of the attachments off an email with the "To" field of a certain agency member's email.
In my first go around making this Flow, I'm making several personalized versions, it worked just fine when I set up the Retrieve email messages action. I entered an email, I got the message attachments out no problem - no fuss no muss. I duplicated (File > Save As...) my Flow and changed only the "To" parameter in the Retrieve email messages action and it threw the following error:
Failed to retrieve message with uid 803
I'm too new to PAD and networking to really have any idea what this means.
After a period of monkeying with the Flow I got it to work for the new email I supplied. Again, I had to duplicate this flow so once more, File > Save As... then back to the Retrieve email messages action to change the "To" field criteria. Once again, it threw a variation of the above error message.
Today I've done the exact same steps as outline above and I'm still getting this mysterious error, now it reads:
Failed to retrieve message with uid 908
Error details: Microsoft.Flow.RPA.Desktop.Robin.SDK.ActionException: Failed to retrieve message with uid 908. ---> System.FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
at System.Text.StringBuilder.AppendFormatHelper(IFormatProvider provider, String format, ParamsArray args)
at System.String.FormatHelper(IFormatProvider provider, String format, ParamsArray args)
at System.String.Format(String format, Object arg0)
at Microsoft.Flow.RPA.Desktop.Modules.Email.Actions.EmailActions.RetrieveEmails(Variant imapServer, Variant username, Variant varPassword, Variant mailFolder, Variant fromContains, Variant toContains, Variant subjectContains, Variant bodyContains, Variant sentSince, Variant sentUpTo, Variant saveAttachmentsInto, Variant& retrievedEmails, Int32 serverPort, Boolean enableSsl, Int32 retrieveOnlyUnread, Boolean saveAttachments, Boolean markAsRead, Boolean acceptUntrustedCertificates)
--- End of inner exception stack trace ---
at Microsoft.Flow.RPA.Desktop.Modules.Email.Actions.RetrieveEmails.Execute(ActionContext context)
at Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)
I'm hesitant to begin postulating what the error specifics mean.
Anyone have any idea what to do differently going forward?
