I installed Yoast plugin and I started taking my posts one by one to optimize it for SEO. I write the main keyword for the post and then when I go on page analysis this is what I get:
No focus keyword was set for this post. If you do not set a focus keyword, no score can be calculated.
The keyword was set. I have tried a few times and this error keeps coming up.
Does anyone know how to fix this issue?