Most likely, one of your dependencies uses the kotlin version of the viewmodel library whereas your code uses the java version.
**Specify both** to enforce the latest version for all dependencies:
def lifecycle_version = "latest_version" implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_version" implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"

Most likely, one of your dependencies uses the `kotlin` version of the `viewmodel` library whereas your code uses the `java` version.
**Specify both** to enforce the latest version for all dependencies:
```gradle def lifecycle_version = "2.4.0" implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_version" implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version" ```