Description
The worker instance for the Export Map Server Cache tool failed to successfully export the tiles.
Solution
Restart the caching geoprocessing service and verify the map/image service is running. Check if the disk with Target Cache Path has disk space available and that the cache tiles exist at the extents being exported from the map/image service. You can use the Manage Map Server Cache Status tool to ensure the cache is completed at the extents you've chosen to export.