Error on opening Record Type

Question

Hi, 
 I am seeing the below error when opening the Record Type: 
 The Requested Record Type Is Not Available Expression evaluation error [evaluation ID = 7b41e:b21e2] at function a!recordList: A grid component [label="null"] has an invalid value for "columns". A grid column [label="Image"] has encountered an error. Expression evaluation error at function a!imageField [line 47]: The image at index 1 in an image gallery component [label=""] has an invalid value for "document". "document" must not be null. (APNX-1-4198-000) 
 Can anyone pls help me to resolve this issue. Let me know if you need more details to debug this issue. 
 
 Thanks, Suneetha.

vinaykumar · Answer

Hi , 
 The error clearly states document must not be null as you are trying to display document Image. 
 Add a null check before a!imageField component like below: 
 if( 
 rule!APN_isBlank(fv!row.columnName) 
 {}, 
 a!imageField( 
 images:a!documentImage( 
 document: fv!row.columnName 
 ) 
 ) 
 ) 
 
 Hope this helps !!!