IDE is 1.8.4 During build, compiler never finishes. Everything worked fine before update. No issues. Tried reinstalling, same result.
Please do this:
- File > Preferences > Show verbose output during: > compilation (check) > OK
- Sketch > Verify/Compile
- After the compilation hangs, copy the full contents of the black console window at the bottom of the Arduino IDE window. You will probably need to scroll up to see it all.
- Paste the error messages in a reply here USING CODE TAGS (</> button on the toolbar).