How to fix error: Could not cast from User to Users - when there is only one Appian data type called "Users"?

Question

How to fix error: Could not cast from User to Users - when there is only one Appian data type called "Users"? 
 Not sure how it determines the new user type of singular form "User" and why it cannot cast. Please advice how to fix this. 
 Thank You

anushas0002 · Accepted Answer

yeah changed it to Text type though. But client preference is User type. How did you identify that it is multiple type? what field from the screenshot helped to understand it is multiple type? is it possible to change it to single? i already set the max selections to 1. to make sure only one user is configured always for that field. It is 18.2 version.

Farnaz · Answer

Hi Anusha, 
 
Please try this and check if the issue is resolved 
 
load( 
local!requestor: ri!NSARequest.Requestor, 
 
a!pickerFieldUsers( 
label: "Requestor Name", 
labelPosition: "ABOVE", 
value: local!requestor, 
saveInto: { 
local!requestor, 
a!save(ri!NSARequest.Requestor,save!value) 
}, 
/*refreshAfter: "UNFOCUS",*/ 
maxSelections: 1, 
validations: {} 
 
),

mayurm168 · Answer

if ri!NSARequest is mulitple or ri!NSARequest.Requestor then such error may occur. 
Please confirm if non of them is of type multiple.

Anna Pol · Answer

I can see your cdt is multiple type in screen shot but it should not be the problem. also which version you are using as that issue is not in 17.2 version. 
To resolve this better use "Requestor" type as text instead of user, this may help you.

Farnaz · Answer

Hi Anusha, 
 
Please try this and check if the issue is resolved 
 
load( 
local!requestor: ri!NSARequest.Requestor, 
 
a!pickerFieldUsers( 
label: "Requestor Name", 
labelPosition: "ABOVE", 
value: local!requestor, 
saveInto: { 
local!requestor, 
a!save(ri!NSARequest.Requestor,save!value) 
}, 
/*refreshAfter: "UNFOCUS",*/ 
maxSelections: 1, 
validations: {} 
 
),

Farnaz · Answer

Hi Anusha, 
 
Please try this and check if the issue is resolved 
 
load( 
local!requestor: ri!NSARequest.Requestor, 
 
a!pickerFieldUsers( 
label: "Requestor Name", 
labelPosition: "ABOVE", 
value: local!requestor, 
saveInto: { 
local!requestor, 
a!save(ri!NSARequest.Requestor,save!value) 
}, 
/*refreshAfter: "UNFOCUS",*/ 
maxSelections: 1, 
validations: {} 
 
),

Farnaz · Answer

Try touser()