Unresolved reference: android

Question

As you can see from the image, Android studio is not able to resolve this import "com.android" in this line.

import com.android.volley.toolbox.Volley

I tried the following truobleshooting found from some other answers:

Clean and rebuild
File -> invalidate caches and restart
Opening the project by build.gradle
Deleting the .idea folder in the project
Installing old sdk (Android 6.0) along with latest

But none seem to be helping. Help please.

build.gradle (module) file : https://textsaver.flap.tv/lists/326r

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "..."
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.android.material:material:1.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'

}

Add module level build.gradle file

Md. Asaduzzaman
– Md. Asaduzzaman

2019-12-26 16:37:48 +00:00
Commented Dec 26, 2019 at 16:37 — Md. Asaduzzaman
– Md. Asaduzzaman, Commented Dec 26, 2019 at 16:37
Added the module build.gradle file.

Mani Bharathy
– Mani Bharathy

2019-12-26 16:46:02 +00:00
Commented Dec 26, 2019 at 16:46 — Mani Bharathy
– Mani Bharathy, Commented Dec 26, 2019 at 16:46

Md. Asaduzzaman · Accepted Answer · 2019-12-26 16:53:42Z

2

As I thought you forgot to add dependency in your gradle file. Add dependency to module level build.gradle file

dependencies {
    ...
    implementation 'com.android.volley:volley:1.1.1'
}

answered Dec 26, 2019 at 16:53

Md. Asaduzzaman

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Comments

alhamwa · Accepted Answer · 2019-12-26 16:27:50Z

1

Try to delete the build folder then resynchronize. Sometimes even using ./gradlew clean command, the generated file not deleted correctly

answered Dec 26, 2019 at 16:27

alhamwa

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4 Comments

Mani Bharathy Over a year ago

Tried both. Still the same

alhamwa Over a year ago

Is it just happen to volley lib ? if true then did you already add the volley lib to your Gradle ?

alhamwa Over a year ago

as i see on your gradle file, you have not add the volley lib.

alhamwa Over a year ago

Good, glad to help you

wonsuc · Accepted Answer · 2020-08-10 04:21:33Z

0

It sounds stupid, but in my case, I had build.gradle and build.gradle.kts files at the same time in the :app module folder.

After deleting build.grale file it worked correctly.

answered Aug 10, 2020 at 4:21

wonsuc

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Comments

RusArtM · Accepted Answer · 2023-02-01 13:33:27Z

0

Sometimes for any reason, the following line appears among the imports

import android.R

This caused (at least in my case) the error Unresolved reference: android.

After removing this line, the error disappears.

edited Feb 1, 2023 at 13:33

RusArtM

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answered Jan 30, 2023 at 12:05

Philipp Breuss-Schneeweis

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