QJson installation on symbian

[switch]

i am having an error trying to install qjson.sis on my N8 when it installs i get "Update Error" as a error message what does that mean? how can i get around that

Edit: split off from topic "QML and JSON":http://developer.qt.nokia.com/forums/viewthread/2057/ in Quick forum, and moved to Installation and Deployment; Andre

[secretNinja]

I don't know if that's the case but I get this error if I have already installed another version of the same program. Most of the time I uninstall the old version and after this I try installing the new one (that works for me).