Hello,
Complete starter with Arduino. I want to get temperature measurement going with a thermistor. I found an example of a sketch,
so copied text from the web page and pasted into blank sketch.
I get an error message something like "stray " which I believe is something to do with the copying process.
You've been hit by some fancy typography. That website substituted "smart quotes" for the regular double-quotes and Unicode EN-dash for the minus signs in lines 33, 37, and 38.
Re-type the quotes around the string constants and re-type the minus signs and it will compile.