when i creat new android studio project ,i got errors notification,Faild to instantiate one or more classes

Question

errors 👇
notification,Faild to instantiate one or more classes
explain..
The following classes couldbnot be instantiated:
androidx.constraintlayout.widget.comstraintLayout(open class,show Exception,Clear cache)
2: error
in xml 👇
tool:context=".MainActivity">
notification👇
unresolved class MainActivity