Variable setting JASS(Help!!!!)

Variable setting JASS(Help!!!!)

I tried to set a variable in JASS that I couldn't normally, and I ended up with an error. Here is the code:

function Trig_set_admin_Actions takes nothing returns nothing
    set udg_Admin = "Eternal_Dread"
endfunction

//===========================================================================
function InitTrig_set_admin takes nothing returns nothing
    set gg_trg_set_admin = CreateTrigger(  )
    call TriggerAddAction( gg_trg_set_admin, function Trig_set_admin_Actions )
endfunction

Now here is the error:

Line 3623: Type mismatch in assignment

Every time I try to save it, it gives me this error, and shows this code. Help?
Also, the variable type is a player.

There is error outside this code.

i would asume, that the variable udg_admin you ahve is not a string type. Therefore you want to asign a string value to a non-string variable which always courses an error

-> everytime you try to set a variable of a type to a value of another type, you have to convert it first.
You may either do this by using the predefined functions, or by writing your own ones (using the return bug).

How would I go about doing this? (Sorry, pretty new to WE)