I have 4 sharepoint 2013 environments , on 3/4 them my custom field works perfect ... but.. on the last machine
which is the production machine I get
"Field type myCustomField is not installed properly. Go to the list settings page to delete this field"
* 2 environments are same , other 2 have less servers
* The custom field works when I use the GUI ( I can add/delete my custom column & add/edit value to column )
* The error appears only when you get to the column with code (C# / powershell ), when you try to get to $list.Fields value.
* I reinstall 1000 times
* Again, this works on 3 other environments ...
*Any ideas why? what can I do? How can clean all the "leftovers" of an uninstalled solution ?