Cannot resolve character with AutoValue and IntelliJ

Question

I tried to find the correct settings for processing IntelliJ annotations so that it coexisted with the Gradle build process.

Whenever I build from IntelliJ, I cannot get it to recognize the generated sources from the gradle-apt-plugin plugin .

My requirements for my project:

• The construction between IntelliJ and Gradle should be seamless and not interfere with each other's process.
• I need to use IntelliJ. Create a separate module for each source set option.
• I need to use IntelliJ folder structure
• IntelliJ should be able to recognize and automatically populate AutoValue classes

Here are the steps for MCVE to reproduce the issue with IntelliJ 2017.2.4 and Gradle 3.5:

• Create a new Gradle project from IntelliJ
• Check the box next to "Create a separate module for each source."
• Open the build.gradle file:
• Add the following block plugins:

plugins {
    id 'java'
    id 'net.ltgt.apt' version '0.12'
}

• Add the following block dependencies

dependencies {
    compileOnly 'com.google.auto.value:auto-value:1.5'
    apt 'com.google.auto.value:auto-value:1.5'
}

• Go to Settings → Build, Run, Deploy → Annotation Processors.
• Check enable annotation processing
• Create class:

@AutoValue
public abstract class GeneratedSourcesTest {

    static GeneratedSourcesTest create(String field) {
        return new AutoValue_GeneratedSourcesTest(field);
    }

    public abstract String field();
}

• On IntelliJ, run Build -> Build Project
• Open the class GeneratedSourcesTest, everything is fine in the static factory method, but I get an error:

cannot resolve symbol 'AutoValue_GeneratedSourcesTest

How to make a class AutoValue_GeneratedSourcesTestaccessible from IntelliJ?

Answer 1

After importing the Gradle project into IDEA, follow these steps:

1. Set the annotation processing configuration as follows:

2. Launch Menu: Build - Build Project

3. : - , :

   4. /generated .gitignore

, IDE . , , Gradle , Root Generated Sources. , , build.gradle.

, IDEA . .

Answer 2

( ) README gradle -apt-plugin: https://github.com/tbroyer/gradle-apt-plugin

, net.ltgt.apt-idea.

, / Gradle IntelliJ. , , IDE . , , .

Answer 3

build.gradle , , intellij, ..

    plugins {
    id 'java'
    id "net.ltgt.apt" version "0.20"

}

apply plugin: 'idea'
apply plugin: 'net.ltgt.apt-idea'
group 'abc'
version '1.0-SNAPSHOT'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.12'
    compile             "com.google.auto.value:auto-value-annotations:1.6.2"
    annotationProcessor "com.google.auto.value:auto-value:1.6.2"
}