You are sharing a web layer that contains a table that is sourced by an unsupported data type.
Solutions
- Replace the unsupported data source with a supported geodatabase table. The following table lists unsupported data sources and suggested alternatives:
Unsupported data sources Suggested alternatives CAD
Import CAD content into a geodatabase feature class.
Excel file
Generate features for each Excel spreadsheet and load the resulting feature classes into a geodatabase feature class.
Web layers
Load the original data source into a geodatabase feature class.
In-memory feature class
Save in-memory data as a feature class in a geodatabase.
CSV
Generate features and load the resulting feature classes into a geodatabase feature class.
Text file
Convert the data to tables in a geodatabase.
SQLite database table
Convert the data to tables in a geodatabase.
Geopackage table
Convert the data to tables in a geodatabase.
- Alternatively, if you do not need the stand-alone table that has an unsupported data source, you can remove the table from your map.
More information
Generally speaking, the best performance will be achieved by using datasets that are native to ArcGIS, that is, geodatabases and key raster and image datasets. In many cases, your unsupported dataset can be loaded into a geodatabase feature class that can then be used in a web layer.
For best performance with geodatabases, use either enterprise geodatabases or file geodatabases. In some cases, with many simultaneous users, enterprise geodatabases are faster. Since enterprise geodatabases are DBMS based, they will scale better than file geodatabases in situations where you have a large number of users (hundreds of users or more).