iOS Question App Crash after B4i Update

Discussion in 'iOS Questions' started by techknight, Jun 14, 2019.

  1. techknight

    techknight Well-Known Member Licensed User

    After updating to the latest B4i, my App is now crashing on startup.

    This is the error:
    Code:
    Application_Start
    Error occurred on line: 
    172 (Main)
    Error opening stream (/
    private/var/mobile/Containers/Data/Application/486CA0FC-72B3-4871-8471-5C3DAC242626/tmp/virtual_assets/rootpanel.bil): Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory" UserInfo={_kCFStreamErrorCodeKey=2, _kCFStreamErrorDomainKey=1}
    Stack Trace: (
      CoreFoundation       <redacted> + 252
      libobjc.A.dylib      objc_exception_throw + 56
      CoreFoundation       <redacted> + 0
      MD Football          -[B4IFile OpenInput::] + 440
      MD Football          -[B4ILayoutBuilder loadLayout:::] + 652
      MD Football          -[B4IPanelWrapper LoadLayout::] + 204
      MD Football          -[b4i_main _application_start:] + 1144
      CoreFoundation       <redacted> + 144
      CoreFoundation       <redacted> + 292
      MD Football          +[B4I runDynamicMethod:method:throwErrorIfMissing:args:] + 1624
     MD Football          -[B4IShell runMethod:] + 448
     MD Football          -[B4IShell raiseEventImpl:method:args::] + 2172
     MD Football          -[B4IShellBI raiseEvent:event:params:] + 1580
     MD Football          __33-[B4I raiseUIEvent:event:params:]_block_invoke + 60
     libdispatch.dylib    <redacted> + 24
     libdispatch.dylib    <redacted> + 16
     libdispatch.dylib    <redacted> + 1068
     CoreFoundation       <redacted> + 12
     CoreFoundation       <redacted> + 1924
     CoreFoundation       CFRunLoopRunSpecific + 436
     GraphicsServices     GSEventRunModal + 104
     UIKitCore            UIApplicationMain + 212
     MD Football          main + 124
     libdyld.dylib        <redacted> + 4
    )
    Application_Active
    This line:
    Code:
    Page1.RootPanel.LoadLayout("RootPanel")
    This app was working fine before. I added some additional code, but I have not changed the layouts at all.

    any ideas?

    Edit: Works fine in release mode. Its a Debug mode bug.
     
    Last edited: Jun 14, 2019
  2. techknight

    techknight Well-Known Member Licensed User

    Rolling back didnt fix it, so something else happened.

    I couldnt figure it out, so I uninstalled the App completely from my iPad and let it reinstall the debug version, Then it worked again.

    Cause? Unknown.
     
  3. Computersmith64

    Computersmith64 Well-Known Member Licensed User

    I don't use B4i, but I do intermittently have similar issues with apps I've developed in Xcode / Swift. Every so often one of them will crash on startup with no errors & the only way I can get it to work again is to reinstall it. I don't know if it's because of an iOS update or possibly an SDK update & I never see an error so it's quite odd.

    - Colin.
     
  4. Andrew (Digitwell)

    Andrew (Digitwell) Active Member Licensed User

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