Consider that Installers Are Not Backwards Compatible

OUI is not compatible between OUI versions. This means that if the OUI version changes between Tools Releases, all Development Client installations must be deinstalled and new installations of a full package using the new OUI must be performed. When a Development Client is deinstalled or saved via SnapShot, the WLSH4A or WASH4A is automatically removed or saved. You must not deinstall WLSH4A or WASH4A yourself.

See Editing the oraparam.ini for the Development Client Installer During an Update or Upgrade for information about the OUI versions.

Examples of a few configurations that are not allowed include:

• A package being installed with one version of OUI cannot be installed on an existing Development Client installation that used a different version of OUI.

• A WLSH4A or WASH4A installed with one version of OUI cannot be installed on an existing Development Client installation that used a different version of OUI.

• The OUI versions of Development Client, WLSH4A, and WASH4A installers cannot be different.

• The OUI installers’ directories cannot contain any files from previous OUI installers.

Important: Avoid the above scenarios on the Development Client by saving with SnapShot or uninstalling the existing Development Client before attempting to install a full package using the new installers.