I can't use brush tool on RGB layer Ai CC 2023

[SORTE]

Hello friends, I'm having a problem with Adobe Illustrator, I can't use the brush tool. I'm trying to use to make an tracing over one image, but when aplying on layer I have the "prohibited" synbol on cursor and can't draw.

Is someone knows the solution or is having the same problem?

[Nancy OShea]

[Moderator moved from Using the Community forums to Illustrator.]

Is the Layer active and unlocked?

[SORTE]

Hello Nancy, thx for answering

Apparently yes...

[Monika Gause]

Did you open a pixel image (a JPG or PNG)?

There are no brushes in it. If you want to draw with the brush tool you need brushes.

It's best to create a new file and then place the pixel image in it. Then you have default brushes.

[SORTE]

Hello Monika, thx for answering

It worked! Now I can use the brush tool, but got another problem, I can't change the opacity of the layer with the image, I've already checked if it's not blocked or unlocked

[Monika Gause]

Which opacity do you want to change? The image?

[SORTE]

Yes, I mean the layer opacity

I go to the right menu in Transparency and then in opacity 

[Monika Gause · Accepted solution]

In order to change the opacity of the layer, you have to target the layer.

https://www.youtube.com/watch?v=jMDpnI5i7M0

[SORTE]

Now it worked! Thanks a lot for the video, you got 1 new subscribed!

[Monika Gause]

Glad you could solve it. And thank you for subscribing!