"Reference error: Fahrenheit not defined" shows up before starting challenge

Challenge Convert Celsius to Fahrenheit has an issue. User Agent is: Mozilla/5.0 (X11; CrOS x86_64 7978.74.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.103 Safari/537.36. Please describe how to reproduce this issue, and include links to screenshots if possible.

My code:

function convertToF(celsius) {
  // Only change code below this line
  var a=32;
  var b=9/5;
  var c=30;

  var d= a + b * c;


  // Only change code above this line
  return fahrenheit;
}

// Change the inputs below to test your code
convertToF(30);

[texas2010]

@nellee24 Please do not post your solution on here. You could help people at FreeCodeCamp Chat Room or Forum. GitHub Issues are for reporting bugs on the website only.

Happy Coding!

[ArmantHitchcock]

I believe the code is incomplete: function convertToF(celsius) { var fahrenheit;

NB: var fahrenheit isn’t assigned to the parameter “celsius” of the above function, and as the instruction below states the the student shouldn’t edit it thus the function won’t work

// Only change code below this line

// Only change code above this line return fahrenheit; }

<hr>

This is my example:

function convertToF(celsius) { var fahrenheit = celsius; // Only change code below this line fahrenheit *=1.8; fahrenheit +=32; // Only change code above this line return fahrenheit; }

// Change the inputs below to test your code convertToF(30);