If a project contains devices marked as 'Defective' or 'Incomplete' (see here), then this might be related to problems with their plug-ins. In order to analyze and resolve these problems, check the following:

Plug-in is not installed

In case a device requires a plug-in then make sure to download (from the manufacturer's website) and install it before importing a project containing such device or before adding such device to a project.

Plug-in is installed

Case 1

Symptoms

• The device from the imported project cannot be configured.
• Adding such device to a newly created project does however work properly, i.e. this device can be configured.

Reason

The device in the imported project is marked as 'Defective' because the plug-in was not exported during project export. This can happen because of several (and even combined) operating system related issues, like: lacking administrator rights, active antivirus software, etc.

Resolution

Simply export and import the project again after resolving the operating system related issue(s).

Case 2

Symptoms

• The device from the imported project cannot be configured.
• Adding such device to a newly created project does not work properly either, i.e. this device cannot be configured.

Reason(s)

The plug-in for this device is not properly installed. One reason could be because of the specific relation between product store and project store in ETS5, see also here.

Resolution

Install (or re-install) the plug-in, then import the project again.