I installed Arduino v1.8.0 this morning and things that worked in 1.6.12 stopped working. Primarily it could not find several "include" files. I went back and reloaded 1.6.12 and found that include files that worked before now don't. :confused: These are files that I had stored in my Arduino\libraries folder. They are still present in the directory but the Arduino Upload function doesn't "see" them. If I go back and install (Sketch > Include Library > Add .ZIP Library...) and then "include" to my sketch (Sketch > Include Library > ...) the Upload processor finds it then dies on the next "include" file.
There is a warning in the IDE installer that says, "...won't affect sketches or libraries in the sketch directory." What "sketch" directory? I don't have a "sketch" directory. My sketches and library files are folders on a separate drive - sketches are on "E:_Development\ARDUINO_SKETCHES" and the libraries are on "E:_Development\ARDUINO\libraries".
Is this causing me to have to reload the import files to my sketches? :(