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The question is published on by Tutorial Guruji team.
Following a tutorial, I imported the Anko libaries by adding in my build.gradle in the app module:
implementation "org.jetbrains.anko:anko-sdk25:0.10.5" implementation "org.jetbrains.anko:anko-appcompat-v7:0.10.5"
I try the example:
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import org.jetbrains.anko.*
class StartActivity : AppCompatActivity(){
override fun onCreate(savedInstanceState: Bundle?) {
verticalLayout {
editText {
hint = "Enter your name"
}
button("ECHO"){
setOnClickListener {
toast("Button clicked")
}
}
}
}
}
For someone reason `import org.jetbrains.anko.* gets great out and AndroidStudio shows an error for verticalLayout by underlying it red. When I hover over it I get the error:
java.io.EOFException
at java.io.DataInputStream.readInt(DataInputStream.java:392)
at org.jetbrains.kotlin.metadata.builtins.BuiltInsBinaryVersion$Companion.readFrom(BuiltInsBinaryVersion.kt:29)
at org.jetbrains.kotlin.serialization.deserialization.MetadataPackageFragment.readProto(MetadataPackageFragmentProvider.kt:136)
at org.jetbrains.kotlin.serialization.deserialization.MetadataPackageFragment.computeMemberScope(MetadataPackageFragmentProvider.kt:105)
at org.jetbrains.kotlin.serialization.deserialization.MetadataPackageFragment.access$computeMemberScope(MetadataPackageFragmentProvider.kt:72)
at org.jetbrains.kotlin.serialization.deserialization.MetadataPackageFragment$memberScope$1.invoke(MetadataPackageFragmentProvider.kt:96)
at org.jetbrains.kotlin.serialization.deserialization.MetadataPackageFragment$memberScope$1.invoke(MetadataPackageFragmentProvider.kt:72)
at org.jetbrains.kotlin.storage.LockBasedStorageManager$LockBasedLazyValue.invoke(LockBasedStorageManager.java:346)
at org.jetbrains.kotlin.storage.LockBasedStorageManager$LockBasedNotNullLazyValue.invoke(LockBasedStorageManager.java:402)
at org.jetbrains.kotlin.serialization.deserialization.MetadataPackageFragment.getMemberScope(MetadataPackageFragmentProvider.kt:128)
at org.jetbrains.kotlin.descriptors.impl.LazyPackageViewDescriptorImpl$memberScope$1.invoke(LazyPackageViewDescriptorImpl.kt:46)
at org.jetbrains.kotlin.descriptors.impl.LazyPackageViewDescriptorImpl$memberScope$1.invoke(LazyPackageViewDescriptorImpl.kt:30)
at org.jetbrains.kotlin.storage.LockBasedStorageManager$LockBasedLazyValue.invoke(LockBasedStorageManager.java:346)
at org.jetbrains.kotlin.storage.LockBasedStorageManager$LockBasedNotNullLazyValue.invoke(LockBasedStorageManager.java:402)
at org.jetbrains.kotlin.resolve.scopes.LazyScopeAdapter.getWorkerScope(LazyScopeAdapter.kt:23)
at org.jetbrains.kotlin.resolve.scopes.AbstractScopeAdapter.getContributedClassifier(AbstractScopeAdapter.kt:44)
at org.jetbrains.kotlin.descriptors.FindClassInModuleKt.fin...
What do I have to do, so that this error isn’t thrown anymore?
Answer
try changing your imports to the following :
import org.jetbrains.anko.button import org.jetbrains.anko.editText import org.jetbrains.anko.toast import org.jetbrains.anko.verticalLayout
this works fine for me: 
and it also compiles and runs: (cutting out some of the toolbar as it has a project name in it)
here’s a list of my dependencies, this is a brand new project from scratch so everything is default :
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.core:core-ktx:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
implementation "org.jetbrains.anko:anko-sdk25:0.10.5"
implementation "org.jetbrains.anko:anko-appcompat-v7:0.10.5"
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}
even changing it to what you posted, works for me as well:
Might be related to either your version of kotlin or maybe an android studio bug, try updating your IDE, for this default project I’m using
Gradle: 3.4.0 Kotlin: 1.3.31
and this version of android studio (hope this helps):
Android Studio 3.4 Build #AI-183.5429.30.34.5452501, built on April 10, 2019 JRE: 1.8.0_152-release-1343-b01 x86_64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o macOS 10.14.6
Side note: I realized OP has no setContentView so I figured I had to try that as well, however:
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