Cannot sync Gradle Kotlin project with 2017.3 Public Preview


Using 2017.3 "Public Preview", build IU173.3415.22 which comes with Kotlin plugin version 1.1.60-eap-43-IJ2017.3-1, I cannot sync my Gradle project with IJ.

I get the error: 

Could not initialize class org.jetbrains.kotlin.kapt.idea.KaptModelBuilderService

The full console output of the build is:

FAILURE: Build failed with an exception.

* Where:
Initialization script '/tmp/ijinit.gradle' line: 16

* What went wrong:
A problem occurred evaluating initialization script.
> org.jetbrains.plugins.gradle.tooling.ModelBuilderService: Provider org.jetbrains.kotlin.kapt.idea.KaptModelBuilderService could not be instantiated

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.


Total time: 0.494 secs
Could not initialize class org.jetbrains.kotlin.kapt.idea.KaptModelBuilderService


Unfortunately I don't know how to run the gradle sync with the --stacktrace option.

There was no error in the previous EAP version.


Gradle version used: 3.1

Kotlin version specified in the project: either 1.1.51, or 1.1.60-eap43


Full IntelliJ version information:

IntelliJ IDEA 2017.3 EAP (Ultimate Edition)
Build #IU-173.3415.22, built on October 25, 2017
IntelliJ IDEA EAP User
Expiration date: November 24, 2017
JRE: 1.8.0_152-release-1024-b6 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Linux 4.4.0-96-generic



Upgrading Gradle does fix it indeed, but some other things in the Gradle build seem to break after upgrading. What is the minimum supported version of Gradle?


The same problem.

When I update my kotlin plugin from ver.1.1.51 to 1.1.60.

Even the projects without kotlin code have the same problem and can't execute 「gradle sync」 successfully.

Now I have to disable the kotlin plugin.

here is my environment:

Android Studio 2.3.1(162.3871768)

JDK internal


gradle plugin 2.1.3

gradle wrapper 2.14.1-all

build sdk version  23.0.3


error detail:

Gradle sync failed: Could not initialize class org.jetbrains.kotlin.kapt.idea.KaptModelBuilderService
Consult IDE log for more details (Help | Show Log)




I had the same issue and fixed it by updating the gradle version from 3.X to 4.1 in file. I read it here:


In addition, remember to add this to your build.gradle file:

apply plugin: 'application'
= '[your_namespace].[your_arctifact]Kt'

where your_namespace is your package name and your_artifact the name of your application/main class.


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