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kotlinlang

No_instance_for_key_AttributeKey__Locations.kt

kotlin version: 1.2.30, ktor version: 0.9.1 when I run with ./gradlew run, program failed with error: Caused by: java.lang.IllegalStateException: No instance for key AttributeKey: Locations
        at io.ktor.util.Attributes.get(Attributes.kt:26)
        at io.ktor.application.ApplicationFeatureKt.feature(ApplicationFeature.kt:31)
        at io.ktor.locations.LocationKt.getLocations(Location.kt:16)
        at io.ktor.locations.LocationKt.location(Location.kt:79)
        at blog.StylesKt.styles(Styles.kt:18)