Cannot Resolve Symbol C882c94be45fff9d16a1cf845fc16ec5

I am a new developer exploring the world of Android. I am currently working through the Udacity tutorials for creating the Sunshine app. In the fragment activity class in order to

Solution 1:

Change

 buildTypes.each {
     it.buildConfigField 'String', 'OPEN_WEATHER_MAP_API_KEY', 'c882c94be45fff9d16a1cf845fc16ec5'
 }

with

 buildTypes.each {
     it.buildConfigField 'String', 'OPEN_WEATHER_MAP_API_KEY', "\"c882c94be45fff9d16a1cf845fc16ec5\""
 }

this way OPEN_WEATHER_MAP_API_KEY should be escaped correctly