Daktronics

Receiving fatal error "Cannot create instance of 'ScrollTextEditor' defined in assembly", No C:\Windows\Fonts folder

Potential Symptoms

  • When trying to insert scrolling text in Content Studio receive fatal error:
    • Fatal error occurred in the application.
    • The application has to be terminated abnormally due to the following error:
    • Cannot create instance of 'ScrollTextEditor' defined in assembly 'ContentStudio,Version=1.26.4456.16987, Culture=neutral, PublicKeyToken=null'. Exception has been thrown by the target of an invocation. Error at object 'EditorZoomLayer' in markup file 'ContentStudio;component/scrollingtextimportdialog.xaml'.
  • You may also see the following error in the Content Studio Log files:
    • Windows XP: C:\Documents and Settings\All Users\Application Data\Daktronics\Content Studio
    • Windows Vista\7: C:\Program Data\Daktronics\Content Studio  
    • Error log:
    • 4/24/2012 1:12:29 PM    : System.Windows.Markup.XamlParseException: Cannot create instance of 'ScrollTextEditor' defined in assembly 'ContentStudio, Version=1.26.4456.16987, Culture=neutral, PublicKeyToken=null'. Exception has been thrown by the target of an invocation.  Error at object 'EditorZoomLayer' in markup file 'ContentStudio;component/scrollingtextimportdialog.xaml'. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: The type initializer for 'Daktronics.VMPL.ContentStudio.ScrollTextEditor' threw an exception. ---> System.IO.DirectoryNotFoundException: Cannot find a part of the path 'C:\Windows\Fonts\arial.ttf'.

Environment

  • Product Family: Software
  • Product: Venus 1500 (4.17)
  • Component: Windows XP
  • Control System: Venus 1500 v4

Cause

  • The software is designed to go to a specific location for fonts which is C:\Windows\Fonts. However the computer does not have a 'Windows' folder, instead it has a WINNT folder. WINNT Folder is what the windows folder was called when using Windows NT or 2000. When the computer was upgraded from Windows NT or 2000 to Windows XP, the upgrade does not change the folder name to Windows or make a new folder. Instead, it remains as WINNT.
    • Note: Venus 1500 v4 software does not know to search in C:\WINNT, because our software only has support in Windows XP, Vista or 7. This is a bug in our software, and will be fixed by engineering in a later release.

Resolution

  • Update to the latest Version of Venus 1500 v4.
    • Follow DD1993540 on how to update to the latest software Version of 4.18 and greater.

Work Around

Important: The following steps require a significant amount of technical knowledge. It is recommended for User to seek assistance from their IT or Technical Department or Daktronics Software Support.

Step 1: Create a mock WINDOWS Folder.
  1. Go to Windows Start Menu -> My Computer.
  2. Go into the computers main directory. Also known as the C Drive.
  3. Create a New Folder in the C Drive called Windows.
  4. Open the Windows Folder.
  5. Create a New Folder in the Windows folder called Fonts.
  6. Open the Font Folder.
  7. Leave folder window open.

Step 2: Copy the Windows Arial Font and place it in the new Fonts folder you created.
  1. Go to Windows Start Menu -> My Computer.
  2. Go into the computer main directory. Also known as the C Drive.
  3. Go into the WINNT folder.
  4. Go into the Fonts folder.
  5. Locate the arial.tff file, right-click and choose Copy.
  6. Go back to the new Fonts folder you created or left open.
  7. Right-click inside the folder and choose Paste.
  8. Verify you have the Arial Font in the following path:
    • %WinDir%\Windows\Fonts
    • Example: C:\Windows\Fonts
    Step 3: Try to insert Scrolling Text element again.

    IMPORTANT: Do not remove or rename the 'WINNT' folder or any of its contents. Only copy the single file from its fonts folder and place into the new fonts folder created.

    KB ID: DD2276092

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