I have an Arduino Due board that I'm trying to write software for using a Windows system. After a few failed attempts to compile my software because analog i/o is not defined above A7 for most of the boards listed in the default configuration, I found out that in order to load the Due software, one must select the Tools>Boards>Board Manager and download the SAM Boards selection that includes the Due board.
I have tried this a couple of times, even clearing/deleting the Arduino download and reloading a fresh download. Every time I try to download the SAM Boards selection I get "Error downloading http://downloads.arduino.cc/packages/package_index.json".
The computer system I use has a firewall that I cannot disable, and that might be the problem. I can't use a memory stick to bring software in from home (not allowed!), so the solution must be do-able even with the firewall in place.
Does anyone have any ideas about how I can get the Due software download?
Probably Arduino isn't allowed to use the internet. Easiest option, install the boards on your own PC and just copy the crap to Dropbox/Google Drive/Sky Drive. See this post.
Then just stop using that fricking computer. If downloading anything is seen as dangerous it's a lost battle... Because those cloud services are pretty save...
Or ask the sys admin to install it. Because if you have to use that board it should have been installed in the first place.
Just FYI that location will work, but they are ordinarily installed in the arduino15 folder so that way they will not need to be reinstalled every time you upgrade the Arduino IDE. If you want the folder structure for the installation there let me know.