3D slicer 4.10 can't load structures

Support
1

Operating system:windows 10
Slicer version:4.10
Hi 3D slicer experts and all
I installed 3D Slicer 4.10 ; but unfortunately , when I load structures the following error message is shown.(figure 1) ; and the CT images are not displayed(figure2). also, I can’t install any Extension from Extension Manager. Can you help me about these problems.
Thanks a lot

2

You need to install SlicerRT extension to be able to load RT structure sets.

3

thank you for your guideline. but I can’t install any Extension. can you help me?

4

See installation instructions here. Name of the extension that you need to install is SlicerRT.

5

Hi
I’m sorry for my questions! but my problem with installing Extensions is that the page associated with Extension Manager is like the following figure ; and no Extensions are visible for selection . I installed and uninstalled the slicer several times, but it was not effective. please guide me.
thank you
extension

6

Is it an official Slicer-4.10 build? Is it possible that your computer is behind a firewall?

Anyway, you can follow these instructions for downloading an extension using a web browser and installing it manually.