Problem: Address locators built at ArcGIS for Desktop 10.4 or earlier and stored in geodatabases do not display as inputs to tools and not are visible in ArcCatalog
ArcGIS 10.4 was the last release to support storing address locators in a geodatabase. This article discusses what to do if you have upgraded to ArcGIS Desktop 10.5 or ArcgGIS Pro 1.4 and you have locators stored in geodatabases.
Address locators stored in geodatabases are no longer supported as specified in the deprecation plan for ArcGIS Desktop 10.4/10.4.1. This means that prior to 10.5 address locators were visible inside of the geodatabase, but after installing 10.5 locators are no longer visible when viewing the contents of the geodatabase. In ArcGIS Pro 1.4 as well, address locators can no longer be seen inside of geodatabases to be able to use them as inputs into tools.
Solution or Workaround
Customers must copy or move their address locators from geodatabases into file folders before installing 10.5, using copy/paste in ArcCatalog or running the Data Management Copy tool. If the locators are not moved before installing 10.5, a previous version can be installed to move the locators out of the geodatabase and into a file folder. If it is not possible to revert back to a previous version, new address locators must be created using the 10.5 style.