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kotlinlang

I have created a fullstack web application from the template in intellij. I am trying to incorporate spring boot. The boot Run task is were I have declares the mainclass.set(com.projecte.ApplicationKt) but I keep getting that the main class cannot be found. I have sample project doing  just the server portion, and it doesn't have an issue. Is there something specific I have to do when fully qualifying in a mutluplatform project like this?