Ошибка java.lang.NoClassDefFoundError

Пытаюсь внедрить в проект библиотеку Calligraphy.

При запуске приложения выдаёт такую ошибку:

2020-02-25 11:55:19.105 2534-2534/? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.yandexweather, PID: 2534 java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/os/BuildCompat; at io.github.inflationx.viewpump.internal.-ViewPumpLayoutInflater.(-ViewPumpLayoutInflater.kt:25) at io.github.inflationx.viewpump.ViewPumpContextWrapper$inflater$2.invoke(ViewPumpContextWrapper.kt:25) at io.github.inflationx.viewpump.ViewPumpContextWrapper$inflater$2.invoke(ViewPumpContextWrapper.kt:22) at kotlin.UnsafeLazyImpl.getValue(Lazy.kt:81) at io.github.inflationx.viewpump.ViewPumpContextWrapper.getInflater(Unknown Source:7) at io.github.inflationx.viewpump.ViewPumpContextWrapper.getSystemService(ViewPumpContextWrapper.kt:31) at android.view.LayoutInflater.from(LayoutInflater.java:229) at android.view.ContextThemeWrapper.getSystemService(ContextThemeWrapper.java:167) at android.app.Activity.getSystemService(Activity.java:5925) at android.view.LayoutInflater.from(LayoutInflater.java:229) at com.android.internal.policy.PhoneWindow.(PhoneWindow.java:304) at com.android.internal.policy.PhoneWindow.(PhoneWindow.java:312) at android.app.Activity.attach(Activity.java:6946) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2711) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.core.os.BuildCompat" on path: DexPathList[[zip file "/data/app/com.example.yandexweather-o71LrHDljCtKr6PqSIzbUA==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.yandexweather-o71LrHDljCtKr6PqSIzbUA==/lib/arm64, /system/lib64, /vendor/lib64]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125) at java.lang.ClassLoader.loadClass(ClassLoader.java:379) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at io.github.inflationx.viewpump.internal.-ViewPumpLayoutInflater.(-ViewPumpLayoutInflater.kt:25)  at io.github.inflationx.viewpump.ViewPumpContextWrapper$inflater$2.invoke(ViewPumpContextWrapper.kt:25)  at io.github.inflationx.viewpump.ViewPumpContextWrapper$inflater$2.invoke(ViewPumpContextWrapper.kt:22)  at kotlin.UnsafeLazyImpl.getValue(Lazy.kt:81)  at io.github.inflationx.viewpump.ViewPumpContextWrapper.getInflater(Unknown Source:7)  at io.github.inflationx.viewpump.ViewPumpContextWrapper.getSystemService(ViewPumpContextWrapper.kt:31)  at android.view.LayoutInflater.from(LayoutInflater.java:229)  at android.view.ContextThemeWrapper.getSystemService(ContextThemeWrapper.java:167)  at android.app.Activity.getSystemService(Activity.java:5925)  at android.view.LayoutInflater.from(LayoutInflater.java:229)  at com.android.internal.policy.PhoneWindow.(PhoneWindow.java:304)  at com.android.internal.policy.PhoneWindow.(PhoneWindow.java:312)  at android.app.Activity.attach(Activity.java:6946)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2711)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)  at android.app.ActivityThread.-wrap11(Unknown Source:0)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)  at android.os.Handler.dispatchMessage(Handler.java:106)  at android.os.Looper.loop(Looper.java:164)  at android.app.ActivityThread.main(ActivityThread.java:6494)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

С чем это может быть связано?