# Pkg missing?
**URL:** https://discourse.julialang.org/t/pkg-missing/65971
**Category:** New to Julia
**Created:** [August 6, 2021, 11:33pm UTC](https://discourse.julialang.org/t/pkg-missing/65971 "2021-08-06T23:33:43Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@dgpdx](https://discourse.julialang.org/u/dgpdx)
#### Post date: [August 6, 2021, 11:33pm UTC](https://discourse.julialang.org/t/pkg-missing/65971/1 "2021-08-06T23:33:43Z")
## I’m using julia on an m1 MacBookPro. When I try to install a package using Pkg.add(PackageName) I get “Pkg not defined” What is going on here? can anyone point me in the right direction?
Don Groves
---
### Author:  [@greatpet](https://discourse.julialang.org/u/greatpet)
#### Post date: [August 6, 2021, 11:36pm UTC](https://discourse.julialang.org/t/pkg-missing/65971/2 "2021-08-06T23:36:24Z")
Run
```julia
using Pkg
```
first.
---
### Author:  [@dgpdx](https://discourse.julialang.org/u/dgpdx)
#### Post date: [August 7, 2021, 12:49am UTC](https://discourse.julialang.org/t/pkg-missing/65971/3 "2021-08-07T00:49:34Z")
Thanks, that helps. But after using Pkg, I tried Pkg.add(DataStructures.jl) and got DataStructures not defined. Any idea where I can find DataSgructures.jl?
---
### Author:  [@dilumaluthge](https://discourse.julialang.org/u/dilumaluthge)
#### Post date: [August 7, 2021, 1:10am UTC](https://discourse.julialang.org/t/pkg-missing/65971/4 "2021-08-07T01:10:40Z")
```julia
using Pkg
Pkg.add("DataStructures")
using DataStructures
```
---
### Author:  [@dgpdx](https://discourse.julialang.org/u/dgpdx)
#### Post date: [August 7, 2021, 2:48am UTC](https://discourse.julialang.org/t/pkg-missing/65971/5 "2021-08-07T02:48:38Z")
Thanks!