Circular dependency detected while autoloading constant

Currently following along with building social features with rails, I am trying to allow a user to "add a friend" except it will be called a job_listing instead. In my project job_listings are not users but a different model. I keep getting an error that says 'Circular dependency detected while autoloading constant ApplyingJob' and refers to my controller for ApplyingJobsController. my applyingJobs table contains a user_id and a job_listing_id

here is my applying_jobs controller

class ApplyingJobsController < ApplicationController

    before_action :require_user

    def new 
        if params[:job_listing_id]
            flash[:notice] = "got job id"

            @job_listing = User.find(params[:job_listing_id])
            @applying_job = current_user.applying_jobs.new(job_listing: @job_listing)


        else
            flash[:error] = "Job Listing Required"
        end

    rescue ActiveRecord::RecordNotFound
        render file: 'public/404', status: :not_found
    end


    def applying_job_params
      params.require(:applying_job).permit(:user_id, :user, :job_listing_id, :job_listing)
    end
end

What I am trying to do is save a users_id and a job_listing_id into my applyingJobs table(relationship table). Is this even how you would do it?

I think this line has a problem but I don't know what to do to fix it.

 @applying_job = current_user.applying_jobs.new(job_listing: @job_listing)

if anyone knows of anything that I am overlooking that could possibly fix this it would be greatly appreciated