<div dir="ltr">Hi Everyone <div><br></div><div>  Hope this email find you well, </div><div><br></div><div>   Is there anyway to avoid this error? I am working in windows system. </div><div><br></div><div>   g.extension extension=r.clip operation=add                    <br>   WARNING: Extension <r.clip> already installed. Re-installing...<br>   Downloading precompiled GRASS Addons <r.clip>...<br>   ERROR: Cannot open URL: <a href="http://wingrass.fsv.cvut.cz/grass78/x86_64/addons/grass-7.8.2/r.clip.zip">http://wingrass.fsv.cvut.cz/grass78/x86_64/addons/grass-7.8.2/r.clip.zip</a><br>   (Thu Nov 26 08:25:58 2020) Command finished (3 sec)               <br></div><div><br></div><div>Cheers</div><div>Ming</div></div>