Third Party Device Support for 'STMicoroelectronics: STM32F334C8'

I am unable to properly update my IDE (details below) to recognize evaluation board Discovery STM32F334. I get following errors:
This project references devices, files or libraries that are not installed.
Downloadd and Install:

Third Party Device Support for 'STMicoroelectronics: STM32F334C8'
(Device not included in legacy Device Database)

and

Error: Device not found-

Device : 'STM32F334C8'
Vendor : 'STMicroelectronics'

Please update your device selection.

However my Pack Installer in Devices tab contains STM32F334C8
In Boards tab Discovery STM32F334 does not appear.

How can I have run Check for updates
Also imported Keil.STM32F3xx_DFP.1.3.0.pack

In the Options for Target dialog, Device tab STM32F334 is still missing.

I see that on the website keil supports:
STM32F3-Discovery STM32F303VC STM32F303

I could not find support packs on ST website for 32F3348DISCOVERY.

Any advice on how to proceed is greatly appreciated.

IDE-Version:
µVision V5.20.0.0