1.6 Frequently Asked Questions

I've upgraded from IDE 1.0.x to 1.6.x and all my sketches and libraries are gone!

IDE 1.6.x changes the location of the preferences file. Therefore, it's using the default sketchbook location, which is C:\Users\username\Documents\Arduino on Windows, /Users/username/Documents/Arduino on MacOSX and /home/username/Arduino on GNU/Linux. Change the IDE preferences to use the same sketchbook folder IDE 1.0.x was using.

I get an error message that says (something like) variable name causes a section type conflict with __c

Your sketch or a library you're using is still using PROGMEM. Please look for a library upgrade