[Gradle, JS] Not error, but warning with test fix

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-browser-project/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    kotlin("js").version("<pluginMarkerVersion>")
+    kotlin("js").version("<pluginMarkerVersion>").apply(false)
 }
 
 group = "com.example"

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/KotlinJsPlugin.kt

@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation.Companion.TEST_COMPI
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider
 import org.jetbrains.kotlin.gradle.plugin.configureDefaultVersionsResolutionStrategy
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinJsSingleTargetPreset
+import org.jetbrains.kotlin.gradle.plugin.whenEvaluated
 import org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrSingleTargetPreset
 import org.jetbrains.kotlin.gradle.utils.*
 
@@ -39,8 +40,9 @@ open class KotlinJsPlugin(
             defaultJsCompilerType = PropertiesProvider(project).jsCompiler
         }
 
-        project.afterEvaluate {
+        project.whenEvaluated {
-            checkNotNull(kotlinExtension._target) {
+            if (kotlinExtension._target == null) {
+                project.logger.warn(
                     """
                         Need to initialize js target.
                         Use 
@@ -53,6 +55,7 @@ open class KotlinJsPlugin(
                             }
                         }
                     """.trimIndent()
+                )
             }
         }