Programming makes everything

I was using Kotlin version 1.2.41 and I upgraded Kotlin version 1.2.41 to 1.3.21. Then, I got compile Error. $ ‘runBlocking(CoroutineContext = ..., suspend CoroutineScope.() -> T): T’ is only available since Kotlin 1.3 and cannot be used in Kotlin 1.2Here is original code plugins { id "org.jetbrains.kotlin.jvm" version "$kotlinVersion" id "org.jetbrains.kotlin.plugin.spring" version "$kotlinVers..