The "default_locale" value is specified in the manifest, but no matching "messages.json" in the "_locales" directory exists. See: https://mzl.la/2hjcaEE
清单中指定有 “default_locale” 值，但“_locales”目录中不存在匹配的“messages.json”。请参阅：https://mzl.la/2hjcaEE