Quality Assurance and Testing with Chai - Learn How JavaScript Assertions Work - QYbk9vA8fmLncuvQx4l1c

I get the following error on the console after running the code, regardless if I change anything in it:

Am I doing something wrong or it’s not my fault?

You might not have express in your package.json

Same problem, dependecies were just fine.
Using the repl.it starter, I was still needed to run ‘npm install express’.
then it works😎