Unfortunately Google Play Services Has Stopped On Galaxy S8 And Galaxy S8 Plus

Nobody wants to see this “Google Play services has stopped” message but any Galaxy S8 or Galaxy S8 Plus user could bump into it at some point. Chances are it will show up as you try to adjust some settings of your Android operating system.
Whether that was the context when it showed up or not, the following tips should help you get rid of this error. As you will soon discover, we’re talking about some rather general fixes, especially since you cannot always know for sure the cause of the “Google Play services has stopped” error:

Empty the cache of the Google Play services app;
Reset the app preferences;
Remove and then add back your Google account;
Wipe the cache partition.

To empty the Cache of the Google Play services:

Go to Settings;
Tap on Applications;
Select the Application Manager;
Switch to the All tab;
Search for the Google Play services;
Tap on it and access the app details;
Tap on the Clear Cache button;
Restart the Galaxy S8 or Galaxy S8 Plus.

To reset the app preferences:

Go back to Settings;
Select Applications >> Application Manager;
Under the All tab tap on the MORE button;
In the extended menu that will show up, select Reset App Preferences;
Restart the device for the changes to take effect.

To remove and add your Google account back:

Head back to the Settings menu;
Tap on the Accounts option;
Within the new window, select your Google account listed in there;
Select the account and then tap on your e-mail address;
In the next submenu tap on the 3-dots symbol on the right side;
From the newly opened pop-up, select Remove account;
Confirm that you want to remove the account;
Return to Settings;
Tap on Accounts;
Tap on Add account;
Select the Google Account option;
Follow the prompts of the wizard that will launch and add your previously removed Google account;
Type in the Gmail address and it should create it automatically from there.

So far, you have focused on the settings of the Google Play services, by wiping its cache and resetting the pre-defined preferences. The third step involved removing your Google account – the one that you are using to access the Google Play services – and adding it back.
When none of these three methods from above worked, all you can do is to perform a wipe cache partition. After you clear the cache of the device, you can expect the Google Play services error to disappear from your Samsung Galaxy S8 or Galaxy S8 Plus. So, go ahead and wipe the cache partition, restart the smartphone, and when it turns back on, launch the Google Play services. The error should be long gone.