+2 to a knowledge skill

[Frodie]

I thought I had this working, but it seems to give this error when a skill is picked.

"Attempt to assign field value with no pick context"

Here is the script:

if (field[usrChosen1].ischosen <> 0) then
field[usrChosen1].chosen.field[Bonus].value += 2
endif

And I attached a screen shot.

Any ideas of what is wrong?

Thanks yall for the help!

 

[Frodie]

and this error when I reloaded HL

"Attempt to assign field value with no pick context
Location: 'eval' script for Thing 'trTest' (Eval Script '#1') near line 3"

 

[Mathias]

Change the "Restrict first list to..." to "Picks on Hero"