I received "Failed to retrieve data" error when adding a date field through Studio. What does this mean? It is not saving the field.
This sometimes means that the database table(s) have reached their limit. MySQL databases have a maximum number of columns per table.
You may be able to resolve this issue by reducing the length of current fields in Studio for the module that you are trying to add the field to. The best place to start are the text fields that have a 255 character length. If you do not need the entire 255 character length, lower that value to a number that will work for the text field. You should also delete any fields that you are no longer using.
What Lori suggested is one of the scenario. You will be getting this error if you don't have proper permission for your file system as well. You can refer the document for more info regarding setting up file system permissions.
It worked! Thanks Lori
Retrieving data ...