Cucumber feature file does not identify the steps
You are missing your feature files in your class path.
You don’t tell us how you are running Cucumber. But if you would run it as a part of a Maven build, which is among the easier options, you would like to store your feature file in
./src/test/resources/GUI
An easy way to get started is to download the getting started project from GitHub, https://github.com/cucumber/cucumber-java-skeleton
It will give you a a working project that you can modify to contain your problem.