Can't run Instruments from Xcode

Question

I recently upgraded to Snow Leopard and since then I am having difficulty running Instrument to instrument my app from Xcode. The Record button would be grayed out, and nothing

Answer 1

I was unable to get instruments to work with my iPhone (it had previously worked). The behaviour I saw was that xcode would say "finished running - Profiling [app name]" before the instruments window was even shown (the choose instrument window).

I worked around this by going to product->scheme->edit scheme, select profile [app name] and select an instrument (i.e. Allocations) under the instrument drop down (instead of "ask on launch").

Once I did this, selecting Product->profile worked for me and the instruments was running.

I wanted the zombie instrument which strangely isn't in the xcode dropdown, I was able to use this by simply using file->new in instruments (while the allocations instrument was still connected and running) and I could then choose the zombies instrument and the record button wasn't greyed out!

All of this was with iOS 7.0.3 and xcode 5.0.1.

I hope this helps at least one other person to stop ripping their hair out, but knowing xcode I somehow doubt it!

Answer 2

As pointed out in Apple's discussion forum, restarting your machine works. It works for me.

Answer 3

I had the same issue! I could only use Instruments on my iPhone but not on iPad or iPad2! Whenever I started instruments with Xcode 4 it would just beep and the record button would be disabled..

I solved this issue by in XCode going to >Targets>Edit Scheme>Profile "yourAppName" and changing the Build Configuration from Release to Debug. Then try to profile again Product>Profile

If you get the beep again.. You will see that it says "CHOOSE TARGET" next to the record button open the drop down >Choose Target> "yourAppName" then hit record.

This solved it for me and was finally able to run instruments again!

I know this post is old but i hope it helps someone.

Answer 4

I've noticed that if I go to File->Record options, and press OK, the record button suddenly is enabled.

Answer 5

The problem is instrument needs a gateway to your app and simply pointing to it doesn't do it. The Instrument's workflow is as such: You need to profile it from Xcode first.

I highly recommend seeing Apple's own links shared in this answer. They are amazingly good and simple.

Apple's documentation says

If Instruments has access to information about your app’s source code, a leak is reported as a class name. Otherwise, a leak is reported as a memory address, such as Malloc-size. To ensure that Instruments has access to information about your code, initiate profiling from Xcode (see Profile from Xcode) or configure a symbol mappings file (see Map Data to Source Code).

Answer 6

I had the same problem after reinstalling Snow Leopard last week. I moved my /Developer folder to /Developer_old and re-ran the Xcode installer pkg, and now have Instruments back.
HTH