'Expected @AndroidEntryPoint to have a value. Did you forget to apply the Gradle Plugin?

When I am using Hilt in android with Room I got this kinda error.

The full log is here:

home/someone/Desktop/Calculator/app/build/tmp/kapt3/stubs/debug/com/hamidjonhamidov/calculator/MyApplication.java:7: error: [Hilt]
public class MyApplication extends android.app.Application {
       ^
  Expected @HiltAndroidApp to have a value. Did you forget to apply the Gradle Plugin?
  [Hilt] Processing did not complete. See error above for details./home/someone/Desktop/Calculator/app/build/tmp/kapt3/stubs/debug/com/hamidjonhamidov/calculator/ui/main/MainActivity.java:7: error: [Hilt]

Anyone knows solution for this?

android dagger-hilt

Solution 1:^[1]

Fortunately, there is simple solution. In build.gradle in database scheme, we should use arguments += instead of arguments = .

defaultConfig{
     javaCompileOptions {
            annotationProcessorOptions {
                arguments += ["room.schemaLocation": "$projectDir/schemas".toString()]
            }
        }
}

Or/And in buld.gradle You should apply plugin like: apply plugin 'dagger.hilt.android.plugin'

This solved the problem)

Solution 2:^[2]

I had this issue after upgrading Kotlin to 1.5.20.
Adding kapt.use.worker.api=false in gradle.properties worked for me the problem
Checkout dagger issue Support for Kotlin 1.5.20

Solution 3:^[3]

UPDATE

Upgrade Hilt to v28.1.0 and Kotlin to v1.5.21 should fix this issue

OLD ANSWER

If you are on kotlin 1.5.20, answer of Mr-wil will decrease build speed as said in official doc:

To improve the speed of builds that use kapt, you can enable the Gradle worker API for kapt tasks. Using the worker API lets Gradle run independent annotation processing tasks from a single project in parallel, which in some cases significantly decreases the execution time.

Instead, set:

kapt {
    javacOptions {
        // These options are normally set automatically via the Hilt Gradle plugin, but we
        // set them manually to workaround a bug in the Kotlin 1.5.20
        option("-Adagger.fastInit=ENABLED")
        option("-Adagger.hilt.android.internal.disableAndroidSuperclassValidation=true")
    }
}

source

Solution 4:^[4]

This generic error message can also appear in many circumstances. As a more generic check, ensure that your module's build.gradle file, ensure that you has:

apply plugin: 'dagger.hilt.android.plugin'

at the top.

Solution 5:^[5]

This was due to a bug in Kotlin 1.5.20. It is fixed in Kotlin 1.5.21.

So all you need to do is to upgrade to the latest version of Kotlin.

Solution 6:^[6]

I had the same problem and it seems like there is a problem in kotlin-kapt plugin. If you guys have tried out all the above answers and didn't get resolved, please try the below code in your build.gradle(module-level) outside the dependencies{} block

kapt {
    javacOptions {
        option("-Adagger.hilt.android.internal.disableAndroidSuperclassValidation=true")
    }
}

Solution 7:^[7]

in the build.gradle of your Android Gradle modules apply the plugin:

apply plugin: 'com.android.application'
apply plugin: 'dagger.hilt.android.plugin'

android {
  // ...
}

see detail here

Solution 8:^[8]

I'm still facing the same issue in 2022

I have solved the problem by adding

classpath 'com.google.dagger:hilt-android-gradle-plugin:2.38.1'

to build.gradle project and adding

id 'dagger.hilt.android.plugin'

to plugins in build.gradle app

Solution 9:^[9]

In my case it solved by declaring plugin:

plugins {
    id("dagger.hilt.android.plugin")
}

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1
Solution 2	greybeard
Solution 3
Solution 4	goldy1992
Solution 5	Ehsan Khaveh
Solution 6	Vijay
Solution 7	raditya gumay
Solution 8	Mohamed Salama
Solution 9	Mohsents

'Expected @AndroidEntryPoint to have a value. Did you forget to apply the Gradle Plugin?

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

UPDATE

OLD ANSWER

Solution 4:[4]

Solution 5:[5]

Solution 6:[6]

Solution 7:[7]

Solution 8:[8]

Solution 9:[9]