Please help. I got 'Gradle project sync failed' without error message and below logs found in idea.log

2018-08-01 21:46:53,447 [J pool 3/7]   INFO -       ScriptTemplatesProviders - [kts] loading script definitions [org.gradle.kotlin.dsl.KotlinInitScript] using cp: C:\Users\tateisu\.gradle\wrapper\dists\gradle-4.4-all\9br9xq1tocpiv8o6njlyu5op1\gradle-4.4\lib\gradle-core-4.4.jar;C:\Users\tateisu\.gradle\wrapper\dists\gradle-4.4-all\9br9xq1tocpiv8o6njlyu5op1\gradle-4.4\lib\gradle-core-api-4.4.jar;C:\Users\tateisu\.gradle\wrapper\dists\gradle-4.4-all\9br9xq1tocpiv8o6njlyu5op1\gradle-4.4\lib\gradle-kotlin-dsl-0.13.1.jar;C:\Users\tateisu\.gradle\wrapper\dists\gradle-4.4-all\9br9xq1tocpiv8o6njlyu5op1\gradle-4.4\lib\gradle-kotlin-dsl-tooling-builders-0.13.1.jar;C:\Users\tateisu\.gradle\wrapper\dists\gradle-4.4-all\9br9xq1tocpiv8o6njlyu5op1\gradle-4.4\lib\gradle-kotlin-dsl-tooling-models-0.13.1.jar;C:\Users\tateisu\.gradle\wrapper\dists\gradle-4.4-all\9br9xq1tocpiv8o6njlyu5op1\gradle-4.4\lib\kotlin-compiler-embeddable-1.1.51.jar 
2018-08-01 21:46:53,451 [J pool 3/7]   WARN -       ScriptTemplatesProviders - [kts] cannot load script definition class org.gradle.kotlin.dsl.KotlinInitScript 
java.lang.ClassNotFoundException: org.gradle.kotlin.dsl.KotlinInitScript

Are breakpoints inside inline lambdas supposed to work normally? I want to know if I'm doing something wrong, or if that's just the way things are.

I'm creating nearly empty Android Studio project with minSdkVersion 10, but its gradle sync was failed. https://gist.github.com/tateisu/143ef8ba903b22556fdf0e6d3001f9a3

AS 3.3 canary users, is there a way to upgrade the plugin to 1.2.60 ?

Hi. When using Kotlin

data classes

as

Room Entities

, what

val

means in this case? Thanks.

I am trying to create a annotation to only allow use strings from constant but its not working, someone know what i am doing wrong?

const val CONST = "value"

@StringDef(CONST)
@Retention(AnnotationRetention.SOURCE)
annotation class OnlyConstantsAllowed

fun getFromKey(@OnlyConstantsAllowed const : String) {
    //..
}

Just remove the

object: Runnable

?

How do you return one value/parameter in Kotlin data class toString function when you have mutliple parameters

Should I be using

androix

packages if I'm starting a new app?

but still not work

Is there currently an easy way to wait for (suspend) something like a permissions request (which calls

onRequestPermissionsResult

as a callback)?

How to avoid this warning?

why do i get such an error in kotlin when i try to run my app, someone help me please

So with sdk 28

parcel.readString()

returns a

String?

.. but my data class uses

String

.. should I just place

!!

to get rid of the warning?

there's also this weird stigma around

!!

as something to be avoided and a sign of bad Kotlin code. This seems to come from the Java-to-Kotlin converter which usually results in a lot of

!!

and ugly Kotlin. But that doesn't mean there aren't valid cases where

!!

makes sense.

Hello everyone, we found a strange issue migrating from Kotlin 1.2.51 to 1.2.60 (always present with AGP 3.1.3, 3.1.4, 3.2.0-beta04 and 3.2.0-beta05, and android extensions plugin):

exception: java.lang.ClassCastException: java.util.Collections$UnmodifiableCollection cannot be cast to java.util.Set
    at org.jetbrains.kotlin.android.synthetic.AndroidComponentRegistrar.registerProjectComponents(AndroidComponentRegistrar.kt:154)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:179)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:117)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$Companion.createForProduction(KotlinCoreEnvironment.kt:413)

I couldn't really find anything on the web, we tried to refactor away some problematic libraries like Guava, but no luck 😕

done https://youtrack.jetbrains.com/issue/KT-25988

Ugh...you can't get the CREATOR static field of a @Parcelize'd object? That seems like a pretty big bug if you need to get arrays of objects in instance state 😛 https://youtrack.jetbrains.net/issue/KT-19853 Finally put together a repro app for the issue I hit last week and looked it up in existing issues and it's been there since 1.1.x? 😮

Hey, is there a way I can make a PreferenceFragment extend LifecycleOwner? It wants me to implement getLifecycle but I’ve no idea how I would do that and I’m struggling to find anything relevant on google.

I would like the compiler to throw an error if Parcelize wants to serialize

Serializable

classes. Is that possible? I want to enforce

Parceler

for every type

Hi here, I'm looking for a good resource on concurrency in Kotlin (RxJava and Coroutines), I found the book "Reactive programming in Kotlin" but the review on Amazon is 1/5 and the commentator said "Poorly written and edited. Many errors in the text and examples. The examples are quite convoluted which obscures the point the author is trying to make." Anyone have any experience with this book, and should I move on from this book?

When I try to run this code, an error of

return is not allowed here

is shown. I’ve read that Non-labeled return statements return from the nearest enclosing fun (ignoring lambdas). I don’t know what’s the mistake here. Could anyone help please?

Does anyone knows where can I add a request for a feature for Android Room Library

i notice there’s still a lot of distaste for fragments, what do you guys use in place of fragments?

Hi everyone! How to correctly use synthetic properties?: directly use in code or assign to an object inside fragment (activity) like this:

Does anyone know of a lib or something to easy LiveData unit testing? Maybe some extension functions... It seems odd to me having to execute an

ld.observeForever

method inside a unit test...

Hello everyone, has anyone tried background listening for the Nearby API on Android 26+. I've tried WorkManager and JobIntentService and in both instances the beacon listener will not fire at all. Any suggestions?

I have been toying around with an idea to be able to directly pass arguments between Fragments. Could y'all let me know if its a bad idea or pointless? I would just love to find a solution that doesn't involve serial/deserialization of data into bundles. When the Fragment is first created, embed the a subclassed ViewModelProvider.Factory into the Fragment with the arguments you want to pass on. When the Fragment goes to get its ViewModel it'll use the embedded Factory which will pass on the arguments. If the factory isn't embedded it constructs a new one with default arguments. Since ViewModels survive configuration changes, the same ViewModel with the previous arguments will be used each time that Fragment gets recreated.