title: IOS application works on the simulator but not on the device
body: <p>I made a simple sign up application with parse backend. Everything works fine. I have no warnings or error code and I can also see the user in the parse dashboard when i create it. But the application only works at the simulator. When I put it on the device, it starts the application but shows a black screen. I tried with an another sample project, just to make sure that my code signing is valid and the other app works on device just fine. So i checked the console logs but I did not understand a whole lot. So could someone be able to help me with this? Thank you.</p>
  
  <p>Here is the console log</p>
  
  <pre><code>Aug 30 18:16:13 Bla-Bla mobile_house_arrest[1179] &lt;Error&gt;: Max open files: 125
  ��Aug 30 18:16:15 Bla-Bla installd[54] &lt;Error&gt;: 0x2fe93000 handle_install: Install of "/var/mobile/Media/PublicStaging/Blast.app" requested by mobile_installation_proxy
  ��Aug 30 18:16:15 Bla-Bla installd[54] &lt;Error&gt;: 0x2fe93000 MobileInstallationInstall_Server: Installing app com.BlaBla.Blast
  ��Aug 30 18:16:15 Bla-Bla installd[54] &lt;Error&gt;: Aug 30 18:16:15  SecTrustEvaluate  [leaf CriticalExtensions IssuerCommonName]
  ��Aug 30 18:16:16 Bla-Bla SpringBoard[66] &lt;Warning&gt;: Killing com.BlaBla.Blast for termination assertion
  ��Aug 30 18:16:16 Bla-Bla lsd[89] &lt;Warning&gt;: updating identifier store
  ��Aug 30 18:16:16 Bla-Bla kernel[0] &lt;Debug&gt;: launchd[1182] Builtin profile: syncdefaultsd (sandbox)
  ��Aug 30 18:16:16 Bla-Bla installd[54] &lt;Error&gt;: 0x2fe93000 MobileInstallationInstall_Server: Staging: 0.22s; Waiting: 0.00s; Installation: 0.75s; LS Sync: 0.32s; Overall: 1.55s
  ��Aug 30 18:16:16 Bla-Bla lsd[89] &lt;Warning&gt;: Attempting to store identifiers file
  ��Aug 30 18:16:23 Bla-Bla CommCenter[37] &lt;Error&gt;: kDataAttachStatusNotification sent, wasAttached: 1 isAttached: 1
  ��Aug 30 18:16:24 Bla-Bla installd[54] &lt;Error&gt;: 0x201000 filter_attributes: Info.plist keys requested via MobileInstallationLookup/Browse in client Xcode (via mobile_installation_proxy) were not found in MobileInstallation's cache. Please file a bug requesting that these keys be added: &lt;CFBasicHash 0x1cd928e0 [0x3a978100]&gt;{type = mutable set, count = 18,
      entries =&gt;
          0 : &lt;CFString 0x3a9649f4 [0x3a978100]&gt;{contents = "CFBundlePackageType"}
          1 : &lt;CFString 0x1cd73e10 [0x3a978100]&gt;{contents = "BuildMachineOSBuild"}
          2 : &lt;CFString 0x3a965a44 [0x3a978100]&gt;{contents = "CFBundleResourceSpecification"}
          3 : &lt;CFString 0x1cd897a0 [0x3a978100]&gt;{contents = "DTPlatformBuild"}
          4 : &lt;CFString 0x3a962794 [0x3a978100]&gt;{contents = "DTCompiler"}
          5 : &lt;CFString 0x3a964564 [0x3a978100]&gt;{contents = "CFBundleSignature"}
          6 : &lt;CFString 0x3a965224 [0x3a978100]&gt;{contents = "DTSDKName"}
          7 : &lt;CFString 0x1cd6e800 [0x3a978100]&gt;{contents = "NSBundleResolvedPath"}
          8 : &lt;CFString 0x3a961eb4 [0x3a978100]&gt;{contents = "UISupportedInterfaceOrientations"}
          10 : &lt;CFString 0x3a969e84 [0x3a978100]&gt;{contents = "DTXcode"}
          13 : &lt;CFString 0x3a969eb4 [0x3a978100]&gt;{contents = "CFBundleInfoDictionaryVersion"}
          16 : &lt;CFString 0x3a967304 [0x3a978100]&gt;{contents = "CFBundleSupportedPlatforms"}
          17 : &lt;CFString 0x1cd81c40 [0x3a978100]&gt;{contents = "DTXcodeBuild"}
          18 : &lt;CFString 0x1cd6e850 [0x3a978100]&gt;{contents = "UIStatusBarTintParameters"}
          19 : &lt;CFString 0x3a965e54 [0x3a978100]&gt;{contents = "DTPlatformVersion"}
          20 : &lt;CFString 0x3a968bf4 [0x3a978100]&gt;{contents = "DTPlatformName"}
          21 : &lt;CFString 0x3a969c84 [0x3a978100]&gt;{contents = "CFBundleDevelopmentRegion"}
          22 : &lt;CFString 0x1cd7f3a0 [0x3a978100]&gt;{contents = "DTSDKBuild"}
      }
  ��Aug 30 18:16:26 Bla-Bla installd[54] &lt;Error&gt;: 0x201000 filter_attributes: Info.plist keys requested via MobileInstallationLookup/Browse in client Xcode (via mobile_installation_proxy) were not found in MobileInstallation's cache. Please file a bug requesting that these keys be added: &lt;CFBasicHash 0x1cd8c720 [0x3a978100]&gt;{type = mutable set, count = 18,
      entries =&gt;
          0 : &lt;CFString 0x3a9649f4 [0x3a978100]&gt;{contents = "CFBundlePackageType"}
          1 : &lt;CFString 0x1cd8ee10 [0x3a978100]&gt;{contents = "BuildMachineOSBuild"}
          2 : &lt;CFString 0x3a965a44 [0x3a978100]&gt;{contents = "CFBundleResourceSpecification"}
          3 : &lt;CFString 0x1cd8c020 [0x3a978100]&gt;{contents = "DTPlatformBuild"}
          4 : &lt;CFString 0x3a962794 [0x3a978100]&gt;{contents = "DTCompiler"}
          5 : &lt;CFString 0x3a964564 [0x3a978100]&gt;{contents = "CFBundleSignature"}
          6 : &lt;CFString 0x3a965224 [0x3a978100]&gt;{contents = "DTSDKName"}
          7 : &lt;CFString 0x1cd7f2d0 [0x3a978100]&gt;{contents = "NSBundleResolvedPath"}
          8 : &lt;CFString 0x3a961eb4 [0x3a978100]&gt;{contents = "UISupportedInterfaceOrientations"}
          10 : &lt;CFString 0x3a969e84 [0x3a978100]&gt;{contents = "DTXcode"}
          13 : &lt;CFString 0x3a969eb4 [0x3a978100]&gt;{contents = "CFBundleInfoDictionaryVersion"}
          16 : &lt;CFString 0x3a967304 [0x3a978100]&gt;{contents = "CFBundleSupportedPlatforms"}
          17 : &lt;CFString 0x1cd90d80 [0x3a978100]&gt;{contents = "DTXcodeBuild"}
          18 : &lt;CFString 0x1cd99040 [0x3a978100]&gt;{contents = "UIStatusBarTintParameters"}
          19 : &lt;CFString 0x3a965e54 [0x3a978100]&gt;{contents = "DTPlatformVersion"}
          20 : &lt;CFString 0x3a968bf4 [0x3a978100]&gt;{contents = "DTPlatformName"}
          21 : &lt;CFString 0x3a969c84 [0x3a978100]&gt;{contents = "CFBundleDevelopmentRegion"}
          22 : &lt;CFString 0x1cd7ea20 [0x3a978100]&gt;{contents = "DTSDKBuild"}
      }
  ��Aug 30 18:16:26 Bla-Bla com.apple.debugserver-199[1186] &lt;Warning&gt;: debugserver-199 for armv7.
  ��Aug 30 18:16:26 Bla-Bla com.apple.debugserver-199[1186] &lt;Warning&gt;: Connecting to com.apple.debugserver service...
  ��Aug 30 18:16:26 Bla-Bla com.apple.debugserver-199[1186] &lt;Warning&gt;: Got a connection, waiting for process information for launching or attaching.
  ��Aug 30 18:16:27 Bla-Bla kernel[0] &lt;Debug&gt;: lockbot[1177] Builtin profile: debugserver (sandbox)
  ��Aug 30 18:16:27 Bla-Bla kernel[0] &lt;Debug&gt;: set_crc_notification_state 0
  Aug 30 18:16:27 Bla-Bla backboardd[26] &lt;Notice&gt;: Posting 'com.apple.iokit.hid.displayStatus' notifyState=1
  Aug 30 18:16:27 Bla-Bla backboardd[26] &lt;Notice&gt;: MultitouchHID: detection mode: 255-&gt;0 (deferring until bootloaded)
  ��Aug 30 18:16:27 Bla-Bla backboardd[26] &lt;Notice&gt;: MultitouchHID: device bootloaded
  ��Aug 30 18:16:27 Bla-Bla backboardd[26] &lt;Notice&gt;: MultitouchHID: detection mode: 0-&gt;0
  ��Aug 30 18:16:27 Bla-Bla com.apple.launchd[1] (UIKitApplication:com.BlaBla.Blast[0xa7df][1189]) &lt;Warning&gt;: (UIKitApplication:com.BlaBla.Blast[0xa7df]) Spawned and waiting for the debugger to attach before continuing...
  ��Aug 30 18:16:27 Bla-Bla kernel[0] &lt;Debug&gt;: ALS: AppleARMBacklight::handleMessageGated - framebufferState -&gt; 1
  ��Aug 30 18:16:27 Bla-Bla kernel[0] &lt;Debug&gt;: ALS: AppleARMBacklight::setBacklightEnableGated 1 (set level to 0x67a)
  ��Aug 30 18:16:27 Bla-Bla kernel[0] &lt;Debug&gt;: launchd[1189] Builtin profile: container (sandbox)
  ��Aug 30 18:16:27 Bla-Bla kernel[0] &lt;Debug&gt;: launchd[1189] Container: /private/var/mobile/Applications/FCCA5177-208D-45C7-A66A-C11372F14E72 (sandbox)
  ��Aug 30 18:16:27 Bla-Bla com.apple.debugserver-199[1186] &lt;Warning&gt;: Got a connection, waiting for debugger instructions.
  ��Aug 30 18:16:28 Bla-Bla locationd[46] &lt;Warning&gt;: Launch Services: Registering unknown app identifier com.apple.PassKit failed
  ��Aug 30 18:16:28 Bla-Bla locationd[46] &lt;Warning&gt;: Launch Services: Unable to find app identifier com.apple.PassKit
  ��
  </code></pre>