dependencies {

    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.2.0'
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'com.google.android.material:material:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.recyclerview:recyclerview:1.1.0'
    implementation 'com.permissionx.guolindev:permissionx:1.4.0'

    // 协程
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.1"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.1"

}

原本没导入协程的包的时候 标准函数使用正常 然后导入后 就报错了 是我导包的问题么 有kt大佬解释一下吗

lateinit var tv :TextView
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_secend)
    val a : Int = 10;
    var a1 : String = "a"

    a1 = a1.also { println("a = $a1") }
    a1 = a1.run {
        println("a = ($a1+1)")
        a1 +1
    }
    println("a = $a1")
}


fun testGlobalScope(){
    GlobalSc
}