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Can't use Kotlin Annotation Processor

See original GitHub issue

Add kapt to gradle project

    id "org.jetbrains.kotlin.kapt" version "1.3.72"

Use some annotation processor e.g.

kapt "com.google.auto.service:auto-service:1.0-rc7"

Boom

Full stacktrace

Issue Analytics

State:
Created 3 years ago
Comments:9 (9 by maintainers)

Top GitHub Comments

1reaction

natanfudgecommented, May 14, 2020

After hours of trial and error, reverse engineering, and debugging, I have figured out the solution. Simply add the following to your build.gradle:

def kaptConfig = configurations.getByName("kapt")
kaptConfig.extendsFrom(configurations.minecraftNamed)
kaptConfig.extendsFrom(configurations.modCompileClasspathMapped)
kaptConfig.extendsFrom(configurations.mappingsFinal)

def loomExt = extensions.getByType(LoomGradleExtension)
def javaTask = tasks.getByName("compileJava")

kapt {
    arguments {
        arg("inMapFileNamedIntermediary", loomExt.getMappingsProvider().tinyMappings.getCanonicalPath())
        arg("outMapFileNamedIntermediary", loomExt.getMappingsProvider().mappingsMixinExport.getCanonicalPath())
        arg("outRefMapFile", new File(javaTask.getDestinationDir(), loomExt.getRefmapName()).getCanonicalPath())
        arg("defaultObfuscationEnv", "named:intermediary")
    }
    includeCompileClasspath = false
}


dependencies {
    kapt "net.fabricmc:sponge-mixin:0.8+build.18"
    kapt "net.fabricmc:fabric-mixin-compile-extensions:0.3.0.4"
}

Global solution TBD

1reaction

natanfudgecommented, May 14, 2020

Wow, that actually did it. Thanks!