Getting Timeout Error When Using suspendExecution and resumeExecutionWithResult with NSScriptCommand

Question

I am currently making use of the suspendExecution and resumeExecutionWithResult of NSScript command in order to execute Apple Scripts asynchronously in my application. Provided below are the set of basic steps that I have taken to achieve the same.

1) Get the script command and store it in an IVAR. Now suspend the execution of the command using [NSScriptCommand suspendExecution]

2) Execute any transaction calls which will return the results asynchronously.

3) In the completionHandler of the Async call resume the execution with the fetched results i.e

[NSScriptCommand resumeExecutionWithResult:result]

The steps mentioned above work perfectly fine when I execute scripts from the Script Editor. but using an NSAppleScript object (when executing the scripts from say a scripts menu) to execute the same results in the following error

"AppleEvent timed out. Error Number: -1712"

The timeout error occurs almost instantaneously. Any pointers as to how this issue can be fixed would be greatly appreciated.

Answer 1

I found that using NSUserAppleScriptTask(available with the 10.8 SDK) instead of NSAppleScript to execute the Apple Script resolves this issue.