I'm attempting to create a Rinkeby test network account on metamask, firstly I've noticed it didn't appear on the networks drop-downmenu so create one manually and it indicated that it was created successfully. But when trying to enter the account I get this error below my screen :
"Due to the protocol changes of Ethereum: Rinkeby, Ropsten and Kovan test network s may not work as reliably and will be deprecated soon"
It's my first time using the tool as I'm following a tutorial online, please help.