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POMissing stack trace in Xcode debugger when exception is thrown on both iOS simulator and device
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  1. POMissing stack trace in Xcode debugger when exception is thrown on both iOS simulator and device
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    copied!<p>When my app throws an exception it prints the following in the debugger output:</p> <pre><code>First throw call stack: (0x310f88bf 0x3829d1e5 0x31e76015 0x31e7640d 0x31e764c5 0x9e903 0x9edfb 0x32b15d55 0x32b20e8d 0x310cb2dd 0x3104e4dd 0x3104e3a5 0x33c7cfed 0x330c0743 0x3267 0x3220) </code></pre> <p>Software stack:<br> Xcode 4.2 in Lion 10.7.2 (Xcode 4.1 is not installed)</p> <p>I am leaning towards this this being an Xcode bug, but do you see anything obvious that I missed? </p> <h2>What I have tried / checked</h2> <p>Build Settings:<br> Debug<br> Strip Debug Symbols During Copy = NO<br> Strip Linked Product = NO<br> Optimization Level = -O0 and-Os<br> Symbols Hidden By Default = YES and NO<br> Compiler = LLVM 3.0 and LLVM GCC 4.2 </p> <p>Scheme:<br> Debugger = GDB and LLDB</p> <p>Cleaning:<br> Clean<br> Clean Build Folder<br> Delete Derived Data Directory (remove from organizer)</p> <p>Devices:<br> iOS 5 Simulator<br> iOS 5 iPhone 4<br> iOS 5 iPhone 3Gs</p> <p>Random:<br> I originally had this problem with both Xcode 4.1 and 4.2 installed, so uninstalled both and reinstalled just 4.2</p> <p>Tried with different projects with the same results.</p> <p>When fiddling with breakpoints I see this in the debugger output before the exception: </p> <pre><code>Catchpoint 36 (throw)Catchpoint 37 (catch)Pending breakpoint 2 - "__cxa_begin_catch" resolved warning: Attempting to create USE_BLOCK_IN_FRAME variable with block that isn't in the frame. warning: Attempting to create USE_BLOCK_IN_FRAME variable with block that isn't in the frame. Catchpoint 36 (exception thrown).warning: Attempting to create USE_BLOCK_IN_FRAME variable with block that isn't in the frame. warning: Attempting to create USE_BLOCK_IN_FRAME variable with block that isn't in the frame. </code></pre>
 

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