Could not create task ':app:minifyReleaseWithR8'. Cannot query the value of this provider because it has no value available

In my case I've just needed to download the correct sdk. Go to SdkManager (for example tap shift key twice and type "sdk manager") and be sure to download the SDK Platform that corresponds to your buildToolsVersion defined in your project's build.gradle.

(I don't know why Android studio was not detecting that sdk was not installed, it may be a bug)

open your Android/gradle.properties file and make sure android.enableR8=true is exists .. and it i will be better to sure that the content of the file is:

org.gradle.jvmargs=-Xmx1536M
android.enableR8=true
android.useAndroidX=true
android.enableJetifier=true

For me I just added buildToolsVersion "30.0.3" in my build.gradle(app) file -

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"
    ...
    ...}

I faced the same problem today and none of the solutions above seemed to work. This is how I resolved it:

• Comment out "minifyEnabled false/true" in app level build.gradle file
• sync (for me AS started to proceed without any issues and downloaded the latest gradle plugin - 7.0.2)
• Once the sync to the new gradle plugin is done, uncomment "minifyEnabled false/true" and run sync again

Remember that R8 is enabled by default since AGP 3.4.0+

My guess is that this was caused by conflict between new AS and corresponding SDK installation and the old gradle config files.

The only solution i've got is to enable this line of code from gradle.properties and make sure this line is not commented:

android.enableR8=true

Do Sync Now (from top right), then it will do the magic..

Wait until sync being finished, and then comment that line again just to silent the deprecated notification:

#android.enableR8=true

In my case I just update my buildToolsVersion from "29.0.3" to buildToolsVersion "30.0.3" in build.gradle (:app)

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"
    ...
}

In my case, just delete buildToolsVersion config. like change

compileSdkVersion 31
buildToolsVersion '31.0.0'

to

compileSdkVersion 31

In my case this was because one of the two following things in build.gradle (:app), or because of both of them:

• I was still using the old Crashlytics SDK from fabric.io instead of Firebase.
• I had an entry to apply plugin: 'com.getkeepsafe.dexcount'

Updating Crashlytics didn't help, but removing the dexcount line fixed the issue.

I hadn't compiled that project in a couple of months, so a lot needed to be upgraded.

In my case my app/build.gradle had a buildToolsVersion that I didn't have installed.

buildToolsVersion '31.0.0-rc3'

But I only had 31.0.0-rc4 installed, having removed 31.0.0-rc3 recently and updated another project, just not this one.

Yes, I would have expected Android Studio (my case 2021.1.1 Canary 1) to say what the problem is explicitly - we should report this.

1. find your buildToolsVersion in app/build.gradle
2. File>Settings>Appearance&Behavior>System Settings>Android SDK>choice the android version of your buildToolsVersion>OK

Commenting this line

//            minifyEnabled true

solved the problem.

It's work for me, upgraded dexcount version from
"com.getkeepsafe.dexcount:dexcount-gradle-plugin:0.8.4" to
"2.0.0"

then BUILD OK

env:
gradle:6.5
Android Studio:4.1.1

I solve it to download the right build tools version with sdk manager.for ex. 29.0.2

In my case just changing compileSdkVersion number in build.gradle(module) solved the issue.

Although the error message mention about minification:

Could not create task ':app:minifyReleaseWithR8'.

is not necessary to disable de minification!, it does´t solve the problem

 //minifyEnabled true
 minifyEnabled false

My app was oriented to android 31, but the SDK was not installed!

android {
    compileSdkVersion 31
    ndkVersion "21.3.6528147"
    buildToolsVersion "30.0.3"
    defaultConfig {
        applicationId "com.jorgesys.news"
        minSdkVersion 20
        targetSdkVersion 31
        versionCode 12
        versionName "1.2.9"

to solve this issue you must be sure to have the correct SDK installed.

disconnect from the internet when generating your bundle