# How to update dependencies in an dev'd package
**URL:** https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352
**Category:** New to Julia
**Tags:** package, development
**Created:** [May 18, 2021, 11:18am UTC](https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352 "2021-05-18T11:18:58Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@triceert](https://discourse.julialang.org/u/triceert)
#### Post date: [May 18, 2021, 11:18am UTC](https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352/1 "2021-05-18T11:18:59Z")
It’s not clear to me how dependencies are updated.
Let’s say I’m developing a package `MyPackage` that resides in` ~./Julia/dev/MyPackage` in which I have
```julia
module MyPackage
using DistributionsAD
#...code
end
```
Now I want to make changes to DistributionsAD which should be reflected in MyPackage.
So I did:
```julia
**(@v1.6) pkg>** dev DistributionsAD
**Cloning** git-repo `https://github.com/TuringLang/DistributionsAD.jl.git`
**Resolving** package versions...
**Updating** `~/.julia/environments/v1.6/Project.toml`
[ced4e74d] + DistributionsAD v0.6.26 `~/.julia/dev/DistributionsAD`
**Updating** `~/.julia/environments/v1.6/Manifest.toml`
[ced4e74d] ~ DistributionsAD v0.6.26 ⇒ v0.6.26 `~/.julia/dev/DistributionsAD`
```
Then I do some changes in `~/.julia/dev/DistributionsAD`, e.g. I added the line `using ForwardDiff` at the top. After this I run:
```julia
**(@v1.6) pkg>** activate DistributionsAD
**Activating** environment at `~/.julia/dev/DistributionsAD/Project.toml`
**(DistributionsAD) pkg>** resolve
**Installed** Distributions ─ v0.25.1
**Updating** `~/.julia/dev/DistributionsAD/Project.toml`
[79e6a3ab] + Adapt v3.3.0
[082447d4] + ChainRules v0.7.65
...
```
but I still run into
```julia
**(DistributionsAD) pkg>** precompile
**Precompiling** project...
**Progress** [========================================>] 2/2
✗ DistributionsAD
1 dependency successfully precompiled in 9 seconds (34 already precompiled)
**ERROR:** The following 1 direct dependency failed to precompile:
DistributionsAD [ced4e74d-a319-5a8a-b0ac-84af2272839c]
**ERROR:** LoadError: ArgumentError: Package DistributionsAD does not have ForwardDiff in its dependencies:
- If you have DistributionsAD checked out for development and have
added ForwardDiff as a dependency but haven't updated your primary
environment's manifest file, try `Pkg.resolve()`.
- Otherwise you may need to report an issue with DistributionsAD
Stacktrace:
[1] **require(** into::Module, mod::Symbol **)**
@ Base ./loading.jl:884
[2] **include**
@ ./Base.jl:386 [inlined]
[3] **include_package_for_output(** pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::Nothing **)**
@ Base ./loading.jl:1213
[4] top-level scope
@ none:1
[5] **eval**
@ ./boot.jl:360 [inlined]
[6] **eval(** x::Expr **)**
@ Base.MainInclude ./client.jl:446
[7] top-level scope
@ none:1
in expression starting at /Users/tseidler/.julia/dev/DistributionsAD/src/DistributionsAD.jl:1
```
My understanding was, that after `resolve` the dependencies/manifests should have been update.
So what am I doing wrong? Also is it correct that by `dev`-ing `DistrbutionsAD`, the dev branch will be loaded in `MyPackage`?
---
### Author:  [@mauro3](https://discourse.julialang.org/u/mauro3)
#### Post date: [May 18, 2021, 11:38am UTC](https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352/2 "2021-05-18T11:38:24Z")
You have to dev the package within your package. I.e start julia with `julia --project` within `~./Julia/dev/MyPackage` then `]` & `dev DistributionsAD`.
---
### Author:  [@triceert](https://discourse.julialang.org/u/triceert)
#### Post date: [May 18, 2021, 11:52am UTC](https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352/3 "2021-05-18T11:52:23Z")
This points to the same folder of the edited version of `DistributionsAD`
```julia
**(MyPackage) pkg>** dev DistributionsAD
Path `/Users/me/.julia/dev/DistributionsAD` exists and looks like the correct package. Using existing path.
**Resolving** package versions...
Updating `~/.julia/dev/MyPackage/Project.toml`
[ced4e74d] ~ DistributionsAD v0.6.26 `../DistributionsAD` ⇒ v0.6.26 `~/.julia/dev/DistributionsAD`
Updating `~/.julia/dev/MyPackage/Manifest.toml`
[ced4e74d] ~ DistributionsAD v0.6.26 `../DistributionsAD` ⇒ v0.6.26 `~/.julia/dev/DistributionsAD`
...
```
which I guess correctly updates the manifest of my package to point to the edited version of `DistributionsAD` but the problem that within `DistributionsAD` the Manifest is not updated after adding a dependency there still exists.
---
### Author:  [@mauro3](https://discourse.julialang.org/u/mauro3)
#### Post date: [May 18, 2021, 11:56am UTC](https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352/4 "2021-05-18T11:56:08Z")
Just `using ForwardDiff` is not enough, you have to add it: start julia within DistributionAD dev-folder, `]`, and 'add ForwardDiff`.
---
### Author:  [@triceert](https://discourse.julialang.org/u/triceert)
#### Post date: [May 18, 2021, 12:03pm UTC](https://discourse.julialang.org/t/how-to-update-dependencies-in-an-devd-package/61352/5 "2021-05-18T12:03:39Z")
Now I get it, I was assuming having it in` (@1.6)` will also make it available in there.
Many thanks for the help.