When using Display XY data function on imported excel into MXD I get this error:
and if I click on "ok" then I get this message:
and the MXD get stuck and I must shut down the ArcGIS program. I know this solution http://desktop.arcgis.com/en/arcmap/10.3/manage-data/editing-fundamentals/data-source-does-not-have-an-oid-field.htm
but I don't understand what has changed from yesterday? by routine I always managed to convert Excel file into shapefile with Display XY data function
I work on this Excel, all the field are regular- as always: