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    JSON Error and Connection Drops

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    • xenon2008undefined
      xenon2008
      last edited by xenon2008

      Hello together!

      have a Duet 2 Wifi in my Sapphire Pro and Updated yesterday to the latest RFF Version!
      since that i always get Errors in DWC:
      Unexpected token < in JSON at position 0

      And then the Connection losts and come back again?

      Did somebody know what this is?

      This Happens every time if i click on the "jobs" tab in the DWC.
      I already have deleted all gcodes files, but it is the same error again

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      • gloomyandyundefined
        gloomyandy
        last edited by

        Did you also update DWC to the latest version?

        Also see https://forum.duet3d.com/topic/19967/3-2-beta-3-2-unexpected-token-in-json-at-position-0?_=1610891955515

        For some possible next steps.

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        • xenon2008undefined
          xenon2008
          last edited by

          i Uplaoded the hole ZIP file from github!
          M115 says:
          FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.2 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2021-01-05

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          • xenon2008undefined
            xenon2008
            last edited by

            Now i uplaoded the whole ZIP File again, but nothing, error exists still

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              There's also this recent thread that I think may be related:

              https://forum.duet3d.com/topic/20764/3-2-json-parse-error-unrecognized-token?_=1610948929338

              Can you open the developer console of chrome when you get the error and share what it shows?

              Can you check that DWC has also been updated to version 3.2?

              It may be worth deleting the entire /www folder and replacing it with the contents of the DWC 3.2 zip file.

              https://github.com/Duet3D/RepRapFirmware/releases/download/3.2/DuetWebControl-SD.zip

              Z-Bot CoreXY Build | Thingiverse Profile

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