Could not nudge the selection because the pixels in a type layer cannot be modified without first rasterizing the layer.

Question

This error message is seen when we try to nudge a selection that contains vector data (such as type layers).

Answer 1

In order to nudge a selection on a type layer, we need to convert this type layer into a raster image.

1. Select the type layer from Layers palette
2. Right-click on that layer
3. Choose Rasterize Type (keep in mind; you can't change type settings after rasterisation)

Answer 2

You accidentally created the selection, remove it and everything will be ok (ctrl-D) - try to move

Answer 3

HERE:

http://painteddigital.com/2010/photoshop-could-not-nudge-the-selection/