I need help !blender2.8

Hi, I’m new to Blender,I created a cylinder, but I can’t modify its parameters, all his parameters are gray. .

Hi,

Try to do it again,

Shift + A, and Mesh, Cylinder.

This should pop up a small tab on lower left of the window. Try to Click on this tab before you click and rotate the cylinder.

I have never experienced this grayed out issue. All i know is u need click on this pop up and change the settings as u need.

Thank you, but the method you said is unsuccessful, but I found that deleting the file under the config file and resetting the Blender can be done, but this means that your personal customization is gone.

if 2.8 was using an older config file it was not compatible with the latest version of 2.8
so you would have to redo it !

happy bl

I had this issue myself. Fixed it with a reset -> File/Defaults/Load Factory Settings