This article applies to:
This bug has been fixed in E-Prime 1.1.
When converting experiments from older BETA versions of E-Prime, a message indicating "an E-Object of type Sound cannot be found in the Toolbox" appears. The conversion fails and the user cannot open the file.
An internal helper, E-Upgrade, incorrectly does not handle proper conversion of SoundOut objects in older versions.
Update your system to E-Prime 1.1 or later, which contains a fix to this issue.