Errors trying to upgrade to sencha cmd 4.0.3.74

[dlethe]

I am using the latest extjs 4.2.1.883 (commercial version), and did a
sencha app upgrade $HOME/ext {Directory of the commercial SDK}
Everything fine until the end ...
[INF] Loading classpath entry /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/app.js
[INF] Loading classpath entry /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/build/temp/production/ExtDesktop/sencha-compiler/app
[ERR] Failed to resolve dependency Ext.ux.desktop.App for file ExtDesktop.view.Desktop
[ERR]
[ERR] BUILD FAILED
[ERR] com.sencha.exceptions.ExNotFound: Unknown definition for dependency : Ext.ux.desktop.App
[ERR] at org.apache.tools.ant.Target.execute(Target.java:39
[ERR] 2)
[ERR]
[ERR] Total time: 5 seconds
[ERR]
[ERR] BUILD FAILED
[ERR] com.sencha.exceptions.BasicException: The following error occurred while executing this line:
[ERR] /Users/david/bin/Sencha/Cmd/4.0.3.74/plugins/ext/4.2/plugin.xml:386: The following error occurred while executing this line:
[ERR] /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/build-impl.xml:367: The following error occurred while executing this line:
[ERR] /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/js-impl.xml:11: com.sencha.exceptions.ExNotFound: Unknown definition for dependency : Ext.ux.desktop.App
[ERR] at
[ERR] com.sencha.command.Sencha.main(Sencha.java:148)
[ERR] /Users/david/bin/Sencha/Cmd/4.0.3.74/plugins/ext/4.2/plugin.xml:386: The following error occurred while executing this line:
[ERR] /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/build-impl.xml:367: The following error occurred while executing this line:
[ERR] /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/js-impl.xml:11: com.sencha.exceptions.ExNotFound: Unknown definition for dependency : Ext.ux.desktop.App
[ERR] /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/build-impl.xml:367: The following error occurred while executing this line:
[ERR] /Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/js-impl.xml:11: com.sencha.exceptions.ExNotFound: Unknown definition for dependency : Ext.ux.desktop.App
[ERR]
[ERR] Total time: 8 seconds
[ERR] com.sencha.exceptions.ExScript: Wrapped com.sencha.exceptions.BasicException: com.sencha.exceptions.BasicException: The following error occurred while executing this line:
/Users/david/bin/Sencha/Cmd/4.0.3.74/plugins/ext/4.2/plugin.xml:386: The following error occurred while executing this line:
/Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/build-impl.xml:367: The following error occurred while executing this line:
/Users/david/SenchaDocuments/MVC/ExtJS4DesktopMVC/.sencha/app/js-impl.xml:11: com.sencha.exceptions.ExNotFound: Unknown definition for dependency : Ext.ux.desktop.App (/Users/david/bin/Sencha/Cmd/4.0.3.74/ant/ant-util.js#849)
runSencha (/Users/david/bin/Sencha/Cmd/4.0.3.74/ant/ant-util.js:849)
runAppUpgrade (x-app-upgrade:443)
anonymous
x_app_upgrade (x-app-upgrade:452)

<script> (anonymous:1) [ERR] The application was last modified by an older version of Sencha Cmd (4.0.1.45) the current is 4.0.3.74. Please run "sencha app upgrade" to update to 4.0.3.74.