Rigging a mirrored character?

Dear members,

I have finished mirrored character,
but only one side can move the vertex, what do I miss here, when I move the bone on the other side, it’s not
moving the object, the other side of the bone will move both side…
Shot :

thanks

What is the naming scheme of your bones and vertex groups? For the mirroring of vertex groups by the modifier, you need to suffix .L and .R for Blender to understand the association, like e.g. ‘UpperArm.L’ and ‘UpperArm.R’. Then there might be an issue with mirroring at the y-axis (normal is x-mirroring). I don’t have time to try now, unfortunately.