ruby on rails undefined local variable or method

Menemukan yang seperti ini:

NameError in Mahasiswas#index

Showing app/views/layouts/mahasiswas.html.erb where line #11 raised:

undefined local variable or method `akun_mahasiswas_path' for # 

8:       

9:       
10:       

11:         <%= link_to "Akun", akun_mahasiswas_path -%> | 
12:         <%= link_to "Logout", logout_path -%>
13:       
14:       

Langkahnya

1. Edit file app/views/layouts/mahasiswas.html.erb

2. baris 11 ganti dengan  <%= link_to "Akun", akun_mahasiswa_path -%>

3. Reload browser