Pessoal terminei o curso e até a ultima aula estava rodando normal, mas após essa aula o app não roda mais. Ele aparece esta mensagem:
E/TypefaceCompatApi26Impl: Unable to collect necessary methods for class java.lang.NoSuchMethodException
java.lang.NoSuchMethodException: android.graphics.FontFamily.<init> []
at java.lang.Class.getConstructor0(Class.java:2332)
at java.lang.Class.getConstructor(Class.java:1728)
at androidx.core.graphics.TypefaceCompatApi26Impl.obtainFontFamilyCtor(TypefaceCompatApi26Impl.java:321)
at androidx.core.graphics.TypefaceCompatApi26Impl.<init>(TypefaceCompatApi26Impl.java:84)
at androidx.core.graphics.TypefaceCompatApi28Impl.<init>(TypefaceCompatApi28Impl.java:36)
at androidx.core.graphics.TypefaceCompat.<clinit>(TypefaceCompat.java:47)
at androidx.core.graphics.TypefaceCompat.create(TypefaceCompat.java:190)
at androidx.appcompat.widget.AppCompatTextView.setTypeface(AppCompatTextView.java:705)
at android.widget.TextView.resolveStyleAndSetTypeface(TextView.java:2183)
at android.widget.TextView.setTypefaceFromAttrs(TextView.java:2154)
at android.widget.TextView.applyTextAppearance(TextView.java:4105)
at android.widget.TextView.<init>(TextView.java:1630)
at android.widget.TextView.<init>(TextView.java:990)