Thanks for your report. You appear to have tried to start up two copies of the installer at once, perhaps by double-clicking on the "Install" icon by accident while the summary page was being displayed. This is also bug 46569.
Thanks for your report. You appear to have tried to start up two copies of the installer at once, perhaps by double-clicking on the "Install" icon by accident while the summary page was being displayed. This is also bug 46569.