I found the solution to my issue. I use homebrew as my package manager.
I used gradle genIntellijRuns (Because I was using Intellij), this was because gradlew "didn't exist". (It did, I ran it a different way).
Here is what I did.
1. First I gave permission to the gradlew file by running. "chmod +x ./gradlew"
2. Then, I ran "./gradlew genIntellijRuns"
A simple fix, if you are running intellij, you are free to use the command in the second step. If you aren't look at the documentation for the appropriate command.