Error downloading Seeed Studio when opening board manager

[julian.scott]

Hi all,

Just having some trouble trying to connect Arduino to the Seeeduino Lotus i'm using. I've entered the URL (https://raw.githubusercontent.com/Seeed ... index.json) into the additional boards manager in preferences, but when i try to open the board manager to download the Seeeduino board i just get hit with:

"Error downloading https://raw.githubusercontent.com/Seeed ... index.json".

Whats even stranger is that this was working perfectly fine a few days back until the Seeeduino board mysteriously uninstalled itself from Arduino.
Any help would be much appreciated.

Thanks Julian

[bill.yu]

Hi Julian

Please click the File-->Preferences-->Settings-->click the "C:\Users\xxx\AppData\Local\Arduino15\preferences.txt". it will open a folder. then you can delete all the files with extension .json/tmp/sig, just leave the preferences.txt/packages/staging. then you can try it once again. thanks.

[ldbenningfield]

@bill.yu I am getting the same error connecting a seeeduino v4.2 for the first time, tried to delete the files and repeat, got same result

[bestlux]

Hello,
Could you pls tell me if you can open the links of json file in your Internet browser or ping it in the terminal?