dagger: @Generated not found *javax.annotation.processing.Generated*

Unfortunately, it doesn’t work for android projects. Any tip how we can compile android, jdk9+ and dagger?

Manually create Generated interface in your project. There could be package exists in another module: java.compiler error if adding in android app module, but creating in android-library module (and then adding it to main via implementation project(':module-generated')) works fine.

I’ve uploaded package with such class to JCenter https://github.com/pengrad/jdk9-deps Now it’s possible to just add this gradle dependency and it compiles with JDK11: compileOnly 'com.github.pengrad:jdk9-deps:1.0'

My issue turned out to be related to JDK9 - explicitly using JDK 1.8 resolved the issue for me. ¯\_(ツ)_/¯

Add the following to gradle.properties

org.gradle.java.home={PATH TO JAVA 8}

Note setting JAVA_HOME did not work for me

Had this issue with Android Studio 4.2. Tried solutions from above and what finally worked was to update Kotlin from 1.3.50 to 1.4.31.

I am using (for Android)

compileOptions {
  sourceCompatibility JavaVersion.VERSION_1_8
  targetCompatibility JavaVersion.VERSION_1_8
}

I have also manually tried setting JAVA_HOME to jdk1.8 and jdk9 - same result.

I recently had this issue on a project when migrating to java 11. I figured out the issue was caused by me using an outdated version of assisted-inject. I made it work by updating dagger to 2.35.1 and both of my assisted-inject dependencies to 0.8.1:

compileOnly 'com.squareup.inject:assisted-inject-annotations-dagger2:0.8.1'
kapt 'com.squareup.inject:assisted-inject-processor-dagger2:0.8.1'

This

Also, make sure to update gradle plugin to 4.2.0 according to this https://developer.android.com/studio/releases/gradle-plugin#4-2-0

And this, did it for me on Android Studio 4.2.1. Thank you very very very much.

The issue seems to have gone away with Android Studio 4.2 Canary 14 @MichalDanielDobrzanski

Having same issue with Canary 14

My issue turned out to be related to JDK9 - explicitly using JDK 1.8 resolved the issue for me. ¯_(ツ)_/¯

Add the following to gradle.properties

org.gradle.java.home={PATH TO JAVA 8}

Note setting JAVA_HOME did not work for me

just in case, if you don’t want to put it to gradle.properties, you can use gradlew TASK_NAME -Dorg.gradle.java.home="C:\Program Files\Android\Android Studio\jre" . This is useful for CI or if several people work on the same project.

I recently had this issue on a project when migrating to java 11. I figured out the issue was caused by me using an outdated version of assisted-inject. I made it work by updating dagger to 2.35.1 and both of my assisted-inject dependencies to 0.8.1:

compileOnly 'com.squareup.inject:assisted-inject-annotations-dagger2:0.8.1'
kapt 'com.squareup.inject:assisted-inject-processor-dagger2:0.8.1'

Also, make sure to update gradle plugin to 4.2.0 according to this https://developer.android.com/studio/releases/gradle-plugin#4-2-0

@ericntd I am facing the same problems on Android Studio 4.2 Preview and Dagger 2.22.

I was not able to use this com.github.pengrad:jdk9-deps:1.0 external dependency inside my project - gradle complained that javax annotation is still missing.

I was trying with: compileOnly("javax.annotation:jsr250-api:1.0") dependency, which provide official JSR250 annotations, but with no luck.

with the stable Android Studio 4.2, I have the same problem with Dagger 2.25, after I updated dagger to latest version, the problem solved

this add in dependency.

// implementation ‘javax.annotation:javax.annotation-api:1.3.2’

4.2 preview same issue. if i use 4.0 works…whats the issue?

Fwiw, with 2.14 (using auto-common 0.9), Dagger will use @javax.annotation.processing.Generated unless --release 8 is used (in which case @javax.annotation.Generated will be used instead):

tasks.withType(JavaCompile) {
  options.compilerArgs += [ "--release", "8" ]
}

From 2.15 onward (using auto-common 0.10), Dagger will also respect -source 8 -target 8, i.e. Gradle’s sourceCompatibility and targetCompatibility.

I fixed the issue with

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlin {
        jvmToolchain(8)
    }

Just add this dependency

implementation ‘javax.annotation:javax.annotation-api:1.3.2’

Unfortunately, it doesn’t work for android projects. Any tip how we can compile android, jdk9+ and dagger?

Manually create Generated interface in your project. There could be package exists in another module: java.compiler error if adding in android app module, but creating in android-library module (and then adding it to main via implementation project(':module-generated')) works fine.

I’ve uploaded package with such class to JCenter https://github.com/pengrad/jdk9-deps Now it’s possible to just add this gradle dependency and it compiles with JDK11: compileOnly 'com.github.pengrad:jdk9-deps:1.0'

I have this issue this morning and after spent hours on trying different things and Java versions, this fixed my problem. So, add compileOnly 'com.github.pengrad:jdk9-deps:1.0' to my build.gradle files fix the issue.

I get this on a very under-developed project, fix was to update Dagger from 2.14.1 to 2.25.4 (before Android X as my project is not upgraded yet). About time to do that methinks.

4.2 preview same issue. if i use 4.0 works…whats the issue?

If you are updating your android studio and using arctic fox (2020.3.1) don’t forget to update the gradle plugin. classpath "com.android.tools.build:gradle:7.0.0-alpha14"

My issue turned out to be related to JDK9 - explicitly using JDK 1.8 resolved the issue for me. ¯_(ツ)_/¯

Add the following to gradle.properties

org.gradle.java.home={PATH TO JAVA 8}

Note setting JAVA_HOME did not work for me

Thank you. I checked my environment and found jdk11 and jdk8. Uninstall and reinstall only jdk8 removed this error.