Unable to build the project due to androidx.core library mismatch

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I was trying to make some changes to my existing project this morning but I am unable to generate the build which was working till yesterday.

I am getting an error that says the following,

The minCompileSdk (30) specified in a dependency's AAR metadata (META-INF/com/android/build/gradle/aar-metadata.properties) is greater than this module's compileSdkVersion (android-29).

Dependency: androidx.core:core-ktx:1.7.0-alpha01.

I am still using the targetSDK as 29 and haven't configured it to be 30 yet and also, I am using Facebook SDK and Admob SDKs for various reasons. Anybody else facing this issue lately?

androidx android-studio sdk android
1 Answers

I had this exact error too.

The solution that worked was to change in build.gradle (app) this line

implementation "androidx.core:core-ktx:+"

to this:

implementation "androidx.core:core-ktx:1.6.0"

And no changes to compileSdkVersion or targetSdkVersion were necessary

Or

change both compileSdkVersion and targetSdkVersion to 30

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