Hi,
I have encountered problems during instaling IDE on my old lab PC with win XP, during instalation it says that there is a problém with x86 (mabey 84, not sure now, sorry) not being compatible with win xp and i can instal it anyway or not instal it, both versions lead to the same problém. When i try to upload sketch to adruino uno it says this:
fork/exec C:\Program Files\Arduino\hardware\tools\avr/bin/avr-g++.exe: %1 is not a valid Win32 application.
Error compiling for board Arduino/Genuino Uno.
I did instal drivers for uno manuály as discribed here on forum many times but nothing changes.
Does anyboady know what might be the problém and how to fix it?
I was thinking about getting older version of IDE (i have 1.8.2) but i couldn't find any.
1.6.x and 1.8.x IDE versions other than 1.8.2 actually have a serious bug when used on XP but it only happens intermittently so you may or may not encounter it. For this reason I'd recommend trying to get 1.8.2 working and only fall back to an old version if you have no other choice. Please do this:
File > Preferences > Show verbose output during > compilation (check) > OK
Sketch > Compile/Verify
When you encounter an error you'll see a button on the right side of the orange bar "Copy error messages". Click that button. Paste the error in a message here using code tags.