Please help me I cannot fix stroke weight or see any change in color

[defaultqeqkpet5inpu]

I can't change stroke weight and use width tool, the anchor point is turning into x .......

What can I do?

[Mylenium]

Well, you are in outline view, it would appear. Switch back to the full preview.

Mylenium

[Simmer1]

The Shortcut you need is Cmd/Ctrl + Y

[Mike_Gondek]

defaultqeqkpet5inpuDid the replies help you, we would like to update the status of this post to solved if that is appropriate.

[Mohammad.Harb · Accepted solution]

In addition to switching to the preview mode by pressing ctrl+y, Make sure the object is selected by the selection tool or the direct selection tool  then change the stroke weight ...