Nov 18, 2018 Same thing as well Does any one have an update on this problem. Nov 26, 2019 Message: undefined method `' for nil:NilClass' I've been using a fresh playground for this Superbadge. It's interesting how a lot of people all have the same issue around the same time frame - I suspect it's probably a newly introduced bug that Salesforce need to resolve. Jan 15, 2015 And worse, because mypath becomes “/file.txt”, which is a perfectly valid path, the recipe may complete without error, but result in a completely invalid install. In this case: node‘att2’‘att3’ becomes. Nil‘attr’ which clearly fails because nil isn’t defined with the “” operator.
If your error looks like ..
.. this means that you're calling a method on an object that has not been defined properly.
Check to see what the return value of the method you're calling is. Is the return value the object you expect? You may need to handle a situation where you receive an false or nil value back.
For example, here we're searching for a contact by an id number that does not exist:
The error:
We expected contact to be defined, but as the contact wasn't found, we couldn't call the method full_name on it.
To fix this error, we could adjust our program like so:
Unlike local variables, which when undefined, raise an undefined local variable error, instance variables start out as a NilClass, and you won't receive a helpful undefined variable style message. Instead, you'll only learn about the issue when you try to call a method on them.
For example, here we're trying to determine someones age by the current year and the year they were born:
Our error:
@current_year was never defined, and as @current_year begins with an @, it is treated as an instance variable. Ruby was expecting that NilClass had a method called - (the subtraction symbol). In other words, the ruby interpreter expected this:
Of course, we wouldn't add a method like this to NilClass in this way.
/comodo-unite-license-key-generator.html. What we need to do is define @current_year first: