Can't access Gmail on Mail app on cellular
As long as my Apple Watch is connected with my iPhone, I can access my Gmail account through the Mail app on my Apple Watch. But, when my Apple Watch is connected to cellular and I try to check my gmail through the mail app, I get the following message: Cannot Get Mail, No connection available to retrieve messages for Gmail, Make sure to activate this account in "Apple Watch App" on your iPhone. I've gone through the setup process several times, but the problem keeps happening. Maybe this is a Gmail issue. I don't know. Any help is appreciated.
Apple Watch Series 4, iOS 12