As i tried to install add-ons in GRASS GIS 7 using the command as:


g.extension extension=r.stream.order

The following error is displayed:

ERROR: GRASS Addons (r.stream.order) not found. Reason: [Errno socket error] [Errno 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

  • Please edit and add which operating system you are using.
    – markusN
    Sep 23, 2016 at 19:48
  • @markusN, I am using Windows 10 64bit operating system and GRASS GIS 7.0.5 RC2 (64bit).
    – John
    Sep 24, 2016 at 8:49
  • Please try again, the winGRASS server was down due to network maintenance...
    – markusN
    Sep 25, 2016 at 21:00
  • @markusN, Thanks a lot for your reply. Yes, Now i can install add-ons in GRASS GIS.
    – John
    Sep 26, 2016 at 5:49

2 Answers 2


As mentioned in comments above by @markusN, the problem was due to Network maintenance.




I asked a similar question here: Error installing addons in GRASS 7.0.2: File is not a zip file?

You need to install the latest version of GRASS

  • i am using GRASS GIS 7.0.5 RC2 (64bit) the latest version.
    – John
    Sep 24, 2016 at 8:52

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