Jass Starter, displaying Text not working?

[YourFace]

function Trig_Untitled_Trigger_001_KillPickedUnit takes nothing returns nothing
    call KillUnit( GetEnumUnit() )
    call DisplayTextToForce( GetPlayersAll(), a )
endfunction

function Trig_Untitled_Trigger_001_Actions takes nothing returns nothing
    local string a = "you lost 1 footmen sorry"
    set udg_unitgroup = GetUnitsInRectAll(GetPlayableMapRect())
    call ForGroupBJ( udg_unitgroup, function Trig_Untitled_Trigger_001_KillPickedUnit)
endfunction
//===========================================================================
function InitTrig_Untitled_Trigger_001 takes nothing returns nothing
    set gg_trg_Untitled_Trigger_001 = CreateTrigger(  )
    call TriggerAddAction( gg_trg_Untitled_Trigger_001, function Trig_Untitled_Trigger_001_Actions )
endfunction

This is like my second trigger in jass and whenever i test the map, it goes to the options screen where you go to log on
I want it so that this trigger to kill every unit in the map and for every unit that dies, it will display "you lost one footmen sorry"
thanks in advane +rep

 

[Joker(Div)]

function Trig_Untitled_Trigger_001_KillPickedUnit takes nothing returns nothing
    local string a = "you lost 1 footmen sorry" //<--- Locals only work inside the function they are called in.
    call KillUnit( GetEnumUnit() )
    call DisplayTextToForce( GetPlayersAll(), a )
endfunction

function Trig_Untitled_Trigger_001_Actions takes nothing returns nothing
    set udg_unitgroup = GetUnitsInRectAll(GetPlayableMapRect())
    call ForGroupBJ( udg_unitgroup, function Trig_Untitled_Trigger_001_KillPickedUnit)
endfunction
//===========================================================================
function InitTrig_Untitled_Trigger_001 takes nothing returns nothing
    set gg_trg_Untitled_Trigger_001 = CreateTrigger(  )
    call TriggerAddAction( gg_trg_Untitled_Trigger_001, function Trig_Untitled_Trigger_001_Actions )
endfunction

 

[YourFace]

oooooooooohhhhhhhhhhhhhh i never knew that
+rep

 

[AdamGriffith]

Locals cannot be passed between functions without special systems.

 

[SFilip]

> Locals cannot be passed between functions without special systems.
In case of ForGroup/ForForce, globals would do. In this particular case, just defining the local in the other function is enough, as Joker pointed out.