Where is the Arduino IDE log file located? Not the Serial Monitor
There is no log file. Instead you need to turn on both &quot;compilation&quot; and &quot;upload&quot; under the &quot;Show verbose output during:&quot; option in Preferences.
This will give you far more information about any errors in the output scroll pane at the bottom of the IDE.
On Linux if you run the IDE from the command line you get large amounts of logging on stdout. There may be a way of doing the same from Windows.