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When createRefs() cannot be imported for constraint layout, it usually means that the version of ConstraintLayout library in use is not updated to the latest version or not compatible with the version of Android Studio being used. createRefs() is a relatively new feature that allows developers to easily create bidirectional connections between views using references. To fix this issue, try updating the version of ConstraintLayout library to the latest or a compatible version in the build.gradle file and syncing the project with the Gradle files. If that does not work, try cleaning and rebuilding the project. Alternatively, try manually importing the createRefs() method into the project by copying the necessary code into the project.