I have created a custom SPField and is working well. But if I retract/deploy or if a upgrade the solution, I've got this error when accessing the item:
SPField Field type is not installed properly. Go to the list settings page to delete this field.
I cannot create a new Column base on this SPField as it not available (this is the issue)
I then have to:
- go to the List Settings
- remove any occurence of my custom SPField
- Retract and redeploy as my custom SPField is not available when creating a new field
- Create the new column (My custom SPField is now available)
I've check the XML definition file and no errors. Anyone know what can cause this and how to fix it?
Thanks
