I'm attempting to write an Automator application that will mount an external disk. I have an AppleScript that does the job and I'm attempting to insert it into an Automator application. However, rather than paste in the script I want to call the file, I have the following in Automator:

on run {input, parameters}
    run script file "Macintosh HD:Users/username/Documents/Scripts and Automator/mountdrive.scpt"
end run

However, this produces a syntax error:

Can’t make some data into the expected type.

Any suggestions as to the source of the problem?

3 Answers 3


run script also accepts a "POSIX path", you don't need the explicit run handler:

run script "/Users/username/Scripts and Automator/mountdrive.scpt"

You could also add a Run Shell Script action where the content is osascript ~/Documents/Scripts\ and\ Automator/mountdrive.scpt.



on run {input, parameters}
    set myScriptPath to (path to documents folder as text) & "Scripts and Automator:mountdrive.scpt"
    run script alias myScriptPath
end run
  • Thx for the response. The issue has to do with the separators, they should be ':'
    – dorich
    Commented Sep 24, 2013 at 5:23

Apparently the problem with the syntax is that the path needs to be separated by ':' as opposed to '/'. Posix uses '/' and Apple uses ':'

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