I can't get my Type tool to highlight the text in my first lesson on Adobe Photoshop, just a broken line?

I just get a rectangleI can't get my Type tool to highlight the text in my first lesson on Adobe Photoshop, just a broken line?
Double check and make sure that you are on the correct layer. In your window options, check layers, and click on the layer with the text. Then try highlighting it and see what happensI can't get my Type tool to highlight the text in my first lesson on Adobe Photoshop, just a broken line?
Aren't there any guidelines or instructions you can refer to for help?????