Tenho um arquivo (/test.txt) que contém informações de eventos do iCa

Friday, May 6, 2011 4:00:00 PM
05/08/2011 11:20:00 PM
summary
location

Friday, May 6, 2011 4:00:00 PM
05/08/2011 11:20:00 PM
summary
location

E este é o manual para ler este arquivo para criar o evento iCa

set Names to paragraphs of (read ("/test.txt"))
set my_list to {}
set temp_list to {}
repeat with nextLine in Names
    if length of nextLine is greater than 0 then
        set temp_list to temp_list & nextLine
    else
        copy temp_list to end of my_list
        set temp_list to {}
    end if
end repeat

repeat with e in my_list
    set my_list to {}
    tell application "iCal"
        tell calendar "Todo"
            set new_event to make new event at end of events
            tell new_event
                repeat with j from 1 to count e
                    set content to item j of e
                    if j is 1 then
                        set start date to date content --> Error
                    end if
                    if j is 2 then
                        set end date to date content
                    end if
                    if j is 3 then
                        set summary to content
                    end if
                    if j is 4 then
                        set location to content
                    end if
                end repeat
            end tell
        end tell
    end tell
end repeat

Executar este código gera um erro

Por que esse erro?