001578: LOCB files could not be created. LOCB files are used when sharing locators with ArcGIS Runtime. Locator's .xml file is invalid. Some nodes are missing.

Description

The locator's loc.xml file has a schema that isn't recognized.

Solution

Try to re-create your locator. If the error persists and the locator has a custom style, try re-creating it using a style provided by ArcGIS.