PEX: Can't Build?

Hi, I am trying to use Permissions ex on my server to do ranks with. Unfortunately for some reason no one can build or use items when they log in, only me (since I'm op). Why does this happen? Or is there another plugin I can use to have Prefixes with without a permissions plugin?
If you see something wrong with the file below could you please post a corrected version. If you have any questions on versions or other plugins please ask
Thanks

permissions.yml file:

groups:
default:
default: true
permissions:
- modifyworld.*
- essentials.sethome
- essentials.home
- essentials.spawn
- essentials.back
- essentials.tpa
- essentials.tpaccept
- essentials.tpdeny
- essentials.spawn
options:
rank: '950'
Member:
prefix: '&c(Member)&7'
inheritance:
- default
permissions:
- essentials.afk
options:
rank: '900'
Prospector:
prefix: '&c(Prospector)&7'
inheritance:
- default
permissions:
- essentials.afk
- essentials.nick
options:
rank: '700'
Mod:
prefix: '&0(&1Mod&0)&7'
inheritance:
- default
permissions:
- essentials.kick
- essentials.vanish
options:
rank: '1'
Admin:
prefix: '&0(&4Admin&0)&7 '
permissions:
- permissions.*
options:
rank: '1'
users:
thesugarlump:
group:
- Admins
permissions:
- permissions.*
TheTornadoKing:
group:
- Admins
permissions:
- permissions.*​

 

what error you get when you cant build?
also:
if you use modifyworld, give modifyworld.*
if you use essentialsantibuild, give essentials.build

 

A 'You do not have permission to interact with ****' message appears

 

Can't he just add build: true under options:?

Code:

        options:
            build: true

 

dont think PEX actually registers it.

 

no one can build on mine either even me and everyone shows up as the default rank
permissions.yml

groups:
default:
build: true
default: true
prefix: '&0[builder]&7 '
permissions:
builder:
build: true
inheritance:
- default
prefix: '&2[builder]*7
permissions:
- modifyworld.*
- essentials.build
- essentials.warp
- lockette.user.create.*
Mod:
build: true
inheritance:
- builder
prefix: '&b[Moderator]&3 '
permissions:
- essentials.repair
- essentials.heal
- essentials.item
- essentials.give
- essentials.warp
- modifyworld.*
- essentials.build
- lockette.*
Admin:
build: true
inheritance:
- Mod
prefix: '&4[Admin]&5 '
permissions:
- essentials.gamemode
- essentials.*
- modifyworld.*
- essentials.build
- lockette.*
Co-Owner:
build: true
inheritance:
- Admin
prefix: '&1[Co-Owner]&5 '
permissions:
- '*'
Owner:
build: true
inheritance:
- co-owner
prefix: '&4[&1O&5w&1n&5e&1r&4]&1 '
permissions:
- '*'
users:
***:
group:
- Owner
***:
group:
- Co-Owner
***:
group:
- Admin
***:
group:
- Admin
***:
group:
- Admin

what is wrong with it

EDIT by Moderator: merged posts, please use the edit button instead of double posting.