Project items are supported by TestComplete plugins. To create project items and load and save their data, TestComplete needs to have proper plugins installed and enabled. If the project you are loading contains project items for which there are no plugins, TestComplete displays this message to warn you about the issue.
The text of the message informs you about the problematic project item. After you close the message, TestComplete will keep the item’s data in the project, however, the item will be unavailable. You will see it as Unavailable [project_item_name] in the Project Explorer panel.
Below are some typical causes of the issue:
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You open a project that was created in an earlier version of TestComplete, and the current version does not support some of the project items that were used in the earlier version.
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The required plugin is disabled or not installed. To check whether a plugin is available, select File | Install Extensions from the TestComplete main menu. TestComplete will display the Extensions dialog that lists installed plugins. The needed plugin must be in the list and its check box must be selected. If the plugin is not in the list, reinstall TestComplete and try to open the project again.
If you do not want to have a problematic item in your project, right-click its Unavailable node in the Project Explorer and choose Remove from the context menu. This will delete the item data from the project, and you will not receive this message when you open the project next time.
See Also
Project Items
About TestComplete Platform, Modules and Add-Ons