Is there an issue with IDE 1.8.9? I downloaded and installed it a few days ago. Today I tried to use it but everything returns a "Error compiling for Arduino/Genuino Uno" and Board Info says it is a Arduino/Genuino Uno and it is on port Com6. This is using a Windows 7 desktop. Even the ArduinoISP example sketch returns that same error. I am unable to do anything with it. Did I miss something? I will re download it and reinstall it but this threw me since the previous version I had installed did not have a problem with these boards.
Thank you.