Hi David,

UpdateLocation. Index and length must refer to a location within the string. Parameter name: Length.

That means there was an error parsing the response from the device. It could be that the data received was corrupted, or in an unrecognized format. If the error persists, it could be device's response is not in a standard format, or maybe the wrong baud rate is selected.

-Ray Gralak
Author of PEMPro
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of David Fabrizio via groups.io
Sent: Sunday, January 3, 2021 5:26 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC GPS Error

All,

I am trying to connect a U-Blox7 GPS to v1.8.8.0 of APCC and I get this error message:

UpdateLocation. Index and length must refer to a location within the string. Parameter name: Length.

The gps is on com7. Any ideas?



Thank you

Dave Fabrizio