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POLaunching app with iOS instruments is unreliable
 

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    <p>I launch my iOS app on the device (not simulator) with the following command (app is already installed).</p> <pre><code>instruments \ -w c717fa22472d7b691ae5763af90e1e44244ad85a \ -t /Applications/Xcode.app/Contents/Applications/Instruments.app/Contents/PlugIns/AutomationInstrument.bundle/Contents/Resources/Automation.tracetemplate \ -D "/Users/mj/Desktop/apps/trace" \ LPSimpleExample-cal \ -e UIARESULTSPATH /Users/mj/Desktop/apps \ -e UIASCRIPT /Users/mj/Desktop/apps/_run_loop.js </code></pre> <p>6 out of 10 times it is working. In case of an error I get the following message:</p> <pre><code>2013-10-07 16:45:51.553 instruments[9891:1207] unable to locate CFBundleIdentifier for path: LPSimpleExample-cal 2013-10-07 16:45:51.555 instruments[9891:1207] Recording cancelled : At least one target failed to launch; aborting run Instruments Trace Error : Error Domain=com.apple.instruments Code=1 "Error Starting Recording" UserInfo=0x7faccbef8fa0 {NSLocalizedDescription=Error Starting Recording, NSLocalizedRecoverySuggestion=At least one target failed to launch; aborting run} Instruments Trace Error : Failed to start trace. </code></pre> <p><br> For me it looks that instruments has a bug here. I tried to launch the app over 100 times, in different scenarios and I can't analyze an error pattern. The device crashlog says:</p> <pre><code>Process: DTMobileIS [34956] Path: /Developer/Library/Daemons/DTMobileIS Identifier: DTMobileIS Version: ??? (???) Code Type: ARM (Native) Parent Process: lockbot [34938] Date/Time: 2013-10-07 15:29:05.474 -0700 OS Version: iOS 6.1.3 (10B329) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x00000000 </code></pre> <p>Exception type <code>EXC_BAD_ACCESS (SIGSEGV)</code> indicates that an object which is getting accessed has been already released. A <code>SIGSEGV</code> is a segmentation fault, meaning you it is trying to access an invalid memory address. Reference: <a href="https://stackoverflow.com/questions/7446655/exception-types-in-ios-crash-logs">Exception Types in iOS crash logs</a></p> <p>Instead of using the bundleIdentifier I also tried to specify the full app path or the full bundleIdentifier:</p> <pre><code># with full app path instruments \ -w c717fa22472d7b691ae5763af90e1e44244ad85a \ -t /Applications/Xcode.app/Contents/Applications/Instruments.app/Contents/PlugIns/AutomationInstrument.bundle/Contents/Resources/Automation.tracetemplate \ -D "/Users/mj/Desktop/apps/trace" \ /Users/mj/Desktop/apps/LPSimpleExample-cal.app \ -e UIARESULTSPATH /Users/mj/Desktop/apps \ -e UIASCRIPT /Users/mj/Desktop/apps/_run_loop.js # with full bundleIdentifier instruments \ -w c717fa22472d7b691ae5763af90e1e44244ad85a \ -t /Applications/Xcode.app/Contents/Applications/Instruments.app/Contents/PlugIns/AutomationInstrument.bundle/Contents/Resources/Automation.tracetemplate \ -D "/Users/mj/Desktop/apps/trace" \ /Users/mj/Desktop/apps/LPSimpleExample-cal.app \ -e UIARESULTSPATH /Users/mj/Desktop/apps \ -e UIASCRIPT /Users/mj/Desktop/apps/_run_loop.js </code></pre> <p><strong>Configuration details</strong></p> <ul> <li>Instruments version: 5.0 (51166)</li> <li>XCode version: 5.0 (5A1413)</li> <li>Device Types: iPhone 5 - 6.1.3, iPhone 5C - 7.02, iPhone 5S - 7.0.2</li> </ul> <p>Has anyone more information in which cases instruments can't launch an app on the device or when do you receive the error message <code>unable to locate CFBundleIdentifier for path: LPSimpleExample-cal</code>?</p>
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    1. COI have a similar problem, let me know if you get anywhere http://stackoverflow.com/questions/19234031/launching-xcode-4-instruments-not-the-xcode-5-version-for-uiautomation
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    2. COI keep you posted. Your stackoverflow post is not public anymore.
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