On November 5, 2020, I was troubled by the following error.
Fill tool error
・I tried to fill in the background with the fill tool, but the message “The fill tool is not available. You cannot edit the pixels within the group without merging the groups.”
I tried all the tools to see if the same error occurred with other tools, and found that there are tools other than the fill tool that cannot be used.
However, even if I get an error like this, I want to use the fill tool, so I tried various things.
the result
Once the layer is selected, the tools are now available.
This time, we will show you how to deal with the error “Unable to use 〇〇 tool. Unable to edit pixels within a group without merging the groups.” in Photoshop .
Error “No layers are selected”
Unable to complete the requested operation. There are no layers selected

Unable to complete the requested operation. There are no layers selected
Quick selection was not available. There are no layers selected

Quick selection was not available. There are no layers selected
Auto selection tool not available. There are no layers selected

Auto selection tool not available. There are no layers selected
Red eye correction tool is not available. There are no layers selected

Red eye correction tool is not available. There are no layers selected
Brush tool is not available. There are no layers selected

Brush tool is not available. There are no layers selected
Pencil tool is not available. There are no layers selected

Pencil tool is not available. There are no layers selected
The color replacement tool is not available. There are no layers selected

The color replacement tool is not available. There are no layers selected
Mixed brushes are not available. There are no layers selected

Mixed brushes are not available. There are no layers selected
Copy stamp tool cannot be used. There are no layers selected

Copy stamp tool cannot be used. There are no layers selected
Pattern stamps are not available. There are no layers selected

Pattern stamps are not available. There are no layers selected
History brush cannot be used. There are no layers selected

History brush cannot be used. There are no layers selected
Art History brushes are not available. There are no layers selected

Art History brushes are not available. There are no layers selected
Eraser tool is not available. There are no layers selected

Eraser tool is not available. There are no layers selected
Background eraser is not available. There are no layers selected

Background eraser is not available. There are no layers selected
Magic eraser cannot be used. There are no layers selected

Magic eraser cannot be used. There are no layers selected
I can’t use the gradient tool. There are no layers selected

I can’t use the gradient tool. There are no layers selected
The fill tool is not available. There are no layers selected

The fill tool is not available. There are no layers selected
Blur tool is not available. There are no layers selected

Blur tool is not available. There are no layers selected
Sharpen tool is not available. There are no layers selected

Sharpen tool is not available. There are no layers selected
The fingertip tool is not available. There are no layers selected

The fingertip tool is not available. There are no layers selected
Dodge tool is not available. There are no layers selected

Dodge tool is not available. There are no layers selected
Burn tool is not available. There are no layers selected

Burn tool is not available. There are no layers selected
Cannot use sponge tool. There are no layers selected

Cannot use sponge tool. There are no layers selected
Workaround: Select the layer
- Click Photoshop [Window] → [Layer].

- [Layer] tab. Select a layer.

This is OK. Tools can be used when a layer is selected.
Operating Environment
- Windows 10 Pro
- Adobe
Photoshop
CC 2020