Problem with Info.plist in 10.5

FROM : Frédéric Testuz
DATE : Wed Aug 27 21:14:56 2008

Hi,

I'm writing a Leopard-target application. Therefore I'm willing to use 
UTI and the new-style for the Info.plist. I red the AppKit release 
notes and I thought I didn't forget something. But when I'm calling 
the save panel I get this error message on the console:

2008-08-27 14:12:52.522 MyApp[23412:813] An NSDocumentController 
returned nil when sent -displayNameForType:@"ch.ftestuz.MyApp.rgbd". 
See the info about new support for UTIs in the Leopard AppKit release 
notes.
2008-08-27 14:12:52.523 MyApp[23412:813] An NSDocumentController 
returned nil when sent -displayNameForType:@"ch.ftestuz.MyApp.rgbdx". 
See the info about new support for UTIs in the Leopard AppKit release 
notes.

My Info.plist is below. I know I can delete some keys, may this be the 
source of the problems?

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd
">
<plist version="1.0">
<dict>
   <key>CFBundleDevelopmentRegion</key>
   <string>fr_CH</string>
   <key>CFBundleDisplayName</key>
   <string></string>
   <key>CFBundleDocumentTypes</key>
   <array>
       <dict>
           <key>CFBundleTypeExtensions</key>
           <array>
               <string>rgbd</string>
           </array>
           <key>CFBundleTypeMIMETypes</key>
           <array>
               <string>application/octet-stream</string>
           </array>
           <key>CFBundleTypeName</key>
           <string>MyApp SQLite</string>
           <key>CFBundleTypeOSTypes</key>
           <array>
               <string>RgBD</string>
           </array>
           <key>CFBundleTypeRole</key>
           <string>Editor</string>
           <key>LSItemContentTypes</key>
           <array>
               <string>ch.ftestuz.MyApp.rgbd</string>
           </array>
           <key>LSTypeIsPackage</key>
           <false/>
           <key>NSDocumentClass</key>
           <string>RBDDocument</string>
           <key>NSPersistentStoreTypeKey</key>
           <string>SQLite</string>
       </dict>
       <dict>
           <key>CFBundleTypeExtensions</key>
           <array>
               <string>rgbdx</string>
           </array>
           <key>CFBundleTypeMIMETypes</key>
           <array>
               <string>text/xml</string>
           </array>
           <key>CFBundleTypeName</key>
           <string>XML</string>
           <key>CFBundleTypeOSTypes</key>
           <array>
               <string>RgBX</string>
           </array>
           <key>CFBundleTypeRole</key>
           <string>Editor</string>
           <key>LSItemContentTypes</key>
           <array>
               <string>ch.ftestuz.MyApp.rgbdx</string>
           </array>
           <key>LSTypeIsPackage</key>
           <false/>
           <key>NSDocumentClass</key>
           <string>RBDDocument</string>
           <key>NSPersistentStoreTypeKey</key>
           <string>XML</string>
       </dict>
   </array>
   <key>CFBundleExecutable</key>
   <string>MyApp</string>
   <key>CFBundleIdentifier</key>
   <string>ch.ftestuz.MyApp</string>
   <key>CFBundleInfoDictionaryVersion</key>
   <string>6.0</string>
   <key>CFBundleName</key>
   <string>MyApp</string>
   <key>CFBundlePackageType</key>
   <string>APPL</string>
   <key>CFBundleShortVersionString</key>
   <string>0.1</string>
   <key>CFBundleSignature</key>
   <string>RgBD</string>
   <key>CFBundleVersion</key>
   <string>0.1</string>
   <key>NSMainNibFile</key>
   <string>MainMenu</string>
   <key>NSPrincipalClass</key>
   <string>NSApplication</string>
   <key>UTExportedTypeDeclarations</key>
   <array>
       <dict>
           <key>UTTypeConformsTo</key>
           <array>
               <string>public.content</string>
               <string>public.data</string>
           </array>
           <key>UTTypeDescription</key>
           <string>MyApp document</string>
           <key>UTTypeIdentifier</key>
           <string>ch.ftestuz.MyApp.rgbd</string>
           <key>UTTypeTagSpecification</key>
           <dict>
               <key>com.apple.ostype</key>
               <string>RgBD</string>
               <key>public.filename-extension</key>
               <string>rgbd</string>
               <key>public.mime-type</key>
               <string>application/octet-stream</string>
           </dict>
       </dict>
       <dict>
           <key>UTTypeConformsTo</key>
           <array>
               <string>public.xml-file</string>
           </array>
           <key>UTTypeDescription</key>
           <string>MyApp XML document</string>
           <key>UTTypeIdentifier</key>
           <string>ch.ftestuz.MyApp.rgbdx</string>
           <key>UTTypeTagSpecification</key>
           <dict>
               <key>com.apple.ostype</key>
               <string>RgBX</string>
               <key>public.filename-extension</key>
               <string>rgbdx</string>
               <key>public.mime-type</key>
               <string>text/xml</string>
           </dict>
       </dict>
   </array>
</dict>
</plist>

Anyone can give me a little help? Or show me an example with just the 
keys required by Leopard?

Thank you.

Frédéric