Inflating class android.support.v4.widget.SwipeRefreshLayout

Because you are using AndroidX, your XML is referencing the wrong version of SwipeRefreshLayout

Change in your XML from android.support.v4.widget.SwipeRefreshLayout to androidx.swiperefreshlayout.widget.SwipeRefreshLayout

I was stuck on the SwipeRefreshLayout using AndroidX

I was not able to get Reference of SwipeRefreshLayout in AndroidX

So I added implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.0.0' dependency in app level gradle file.

So in my case solution is,

Add the dependency in app level build.gradle file

implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.0.0'

This issue seems to happen when migrating to AndroidX as there are many build artifact to be changed when Migrating to AndroidX.

Solution 1: Do it manually

For exemple:

android.support.v4.widget.SwipeRefreshLayout changed to => androidx.swiperefreshlayout.widget.SwipeRefreshLayout

You must update all the build artifact listed in Migrating to AndroidX

As suggested in this same link, you could automate this process by selecting Refactor > Migrate to AndroidX from the menu bar.

ADDITIONAL INFO - The errors I had:

Error inflating class android.support.constraint.ConstraintLayout

element WebView is not allowed here