title: Windows Phone App crashing without exceptions
body: <p>I got a Windows Phone 8 app, that I've been developing over 2 years, its about 15k lines of code now. Starting from today it suddenly keeps crashing after showing the main screen for 5 secs. I've debugged it from the very first line of code and all the way through, to where the main screen is done running code. </p>
  
  <p>I get no exceptions and I can't see anything wrong by the looks of it. Is there something else I can do to locate where/when/why it crashes?</p>
  
  <p>EDIT: After a closer look i found this in my output:</p>
  
  <blockquote>
    <p>An exception of type 'System.Net.WebException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
    An exception of type 'System.Net.WebException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
    'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\en-US\System.Xml.debug.resources.DLL'. Module was built without symbols.
    An exception of type 'System.Xml.XmlException' occurred in System.Xml.ni.dll and wasn't handled before a managed/native boundary
    'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\Data\Programs{6932AD96-A8AA-45F2-BC4E-81B7665641D8}\Install\microsoft.phone.controls.DLL'. Cannot find or open the PDB file.
    'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\LocationService.Interop.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
    An exception of type 'System.OutOfMemoryException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
    'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\windows\system32\en-US\mscorlib.debug.resources.dll'. Module was built without symbols.
    An exception of type 'System.Runtime.InteropServices.SEHException' occurred in Unknown Module. and wasn't handled before a managed/native boundary
    The program '[2540] TaskHost.exe' has exited with code 0 (0x0).</p>
  </blockquote>
  
  <p>But I don't know what to make of it.</p>