Missing property access

[darianalvarezt]

In the example code provided on the 8 page, step number 4, the access of root property is missing. Should be instead:

// TODO: Set an on-click listener on the "Add to Google Wallet" button
addToGoogleWalletButton = layout.addToGoogleWalletButton.root

addToGoogleWalletButton.setOnClickListener {
  walletClient.savePassesJwt(token, this, addToGoogleWalletRequestCode)
}