# Revise.jl doesn't appear to do anything

**URL:** <https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [February 7, 2021, 1:07pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788 "2021-02-07T13:07:57Z")\
**Posts on this page:** 20\
**Page:** 2

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**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:03pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/21 "2021-02-07T16:03:08Z")

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I tried in a new package, and nothing appears to happen there either.

---

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**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:11pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/23 "2021-02-07T16:11:13Z")

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Okay, starting entirely from scratch, here is a full log that fails:

```nohighlight
alice@magatoroido ~ % julia
               _
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.5.3 (2020-11-09)
 _/ |\ __'_|_|_|\__'_| |  
|__/ |

(@v1.5) pkg> generate TestPkg
 Generating project TestPkg:
    TestPkg/Project.toml
    TestPkg/src/TestPkg.jl

(@v1.5) pkg> 
alice@magatoroido ~ % cd TestPkg
alice@magatoroido TestPkg % tree            
.
├── Project.toml
└── src
    └── TestPkg.jl

1 directory, 2 files
alice@magatoroido TestPkg % julia --project 
┌ Warning: no Manifest.toml file found, static paths used
└ @ Revise ~/.julia/packages/Revise/lwch5/src/Revise.jl:866
               _
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.5.3 (2020-11-09)
 _/ |\ __'_|_|_|\__'_| |  
|__/ |

julia> println(read("src/TestPkg.jl", String))
module TestPkg

greet() = print("Hello World!")

end # module

julia> using Revise

julia> using TestPkg
[Info: Precompiling TestPkg [39da3a16-183b-40c1-a219-f5fee491b8e0]

julia> TestPkg.greet()
Hello World!

```

Now I modify the file. Back to the same terminal:

```nohighlight
julia> println(read("src/TestPkg.jl", String))
module TestPkg

greet() = print("Hello World!")

function foo()
  println("In foo")
end

end # module

julia> TestPkg.foo()
ERROR: UndefVarError: foo not defined
Stacktrace:
 [1] top-level scope at REPL[6]:1
 [2] run_repl(::REPL.AbstractREPL, ::Any) at /build/julia/src/julia-1.5.3/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:288

julia> 
alice@magatoroido TestPkg % julia --project 
┌ Warning: no Manifest.toml file found, static paths used
└ @ Revise ~/.julia/packages/Revise/lwch5/src/Revise.jl:866
               _
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.5.3 (2020-11-09)
 _/ |\ __'_|_|_|\__'_| |  
|__/ |

julia> using TestPkg
[Info: Precompiling TestPkg [39da3a16-183b-40c1-a219-f5fee491b8e0]

julia> TestPkg.foo()
In foo

```

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:14pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/24 "2021-02-07T16:14:57Z")

</div>

I have found some information on debugging Revise. Will be back with more info in a bit…

---

<div class="post-metadata">

**Author:** ![pdeffebach](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pdeffebach/32/10320_2.png) [@pdeffebach](https://discourse.julialang.org/u/pdeffebach)\
**Post date:** [February 7, 2021, 4:17pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/25 "2021-02-07T16:17:10Z")

</div>

Thanks a ton for this.

I did the exact same process and it’s working for me.

```julia
 ~/Documents/Projects/test/VoronoiCLR  julia --project
               _
   _ _ _(_)_ | Documentation: https://docs.julialang.org
 ~/Documents/Projects/test  julia -q
(@v1.5) pkg> generate TestPkg
 Generating project TestPkg:
    TestPkg/Project.toml
    TestPkg/src/TestPkg.jl

julia> 
 ~/Documents/Projects/test  cd TestPkg
 ~/Documents/Projects/test/TestPkg  julia --project -q

julia> using Revise;
┌ Warning: no Manifest.toml file found, static paths used
└ @ Revise ~/.julia/packages/Revise/moD4B/src/packagedef.jl:1361

julia> using TestPkg
[Info: Precompiling TestPkg [f1e03898-1ba8-48c0-9610-f60f1b9612ad]

julia> TestPkg.foo()
ERROR: UndefVarError: foo not defined
Stacktrace:
 [1] getproperty(::Module, ::Symbol) at ./Base.jl:26
 [2] top-level scope at REPL[3]:1

shell> subl .

julia> println(read("src/TestPkg.jl", String))
module TestPkg

greet() = print("Hello World!")

end # module

julia> println(read("src/TestPkg.jl", String))
module TestPkg

greet() = print("Hello World!")

function foo()
	println("In foo.")
end

end # module

julia> TestPkg.foo()
In foo.

```

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:24pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/26 "2021-02-07T16:24:26Z")

</div>

Okay, more info, from [this part of the doc](https://timholy.github.io/Revise.jl/stable/#If-Revise-doesn't-work-as-expected-1), I tried to run the tests.

> Try running `test Revise` from the Pkg REPL-mode. If tests pass, check the documentation to make sure you understand how Revise should work. If they fail (especially if it mirrors functionality that you need and isn’t working), see [Debugging problems with paths](https://timholy.github.io/Revise.jl/stable/debugging/#Debugging-problems-with-paths-1) for one set of suggestions.

Running the tests as suggested results in lots of errors:

[click to see output](https://gist.github.com/Darksonn/102f55d7a4801ea7297b96ac0ed2de2f)

Do you see anything in these logs that reveal the issue? The above is with `Revise v1.0.3` and `julia version 1.5.3` on Linux.

---

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**Author:** ![Christopher\_Fisher](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/christopher_fisher/32/26132_2.png) [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Post date:** [February 7, 2021, 4:32pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/27 "2021-02-07T16:32:56Z")

</div>

> [@alice](#):
>
> The above is with `Revise v1.0.3`

The most current version is 3.1.11. Is there a reason you are using an old version of Revise?

---

<div class="post-metadata">

**Author:** ![pdeffebach](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pdeffebach/32/10320_2.png) [@pdeffebach](https://discourse.julialang.org/u/pdeffebach)\
**Post date:** [February 7, 2021, 4:33pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/28 "2021-02-07T16:33:46Z")

</div>

As mentioned above, you should update `Revise`. You have an old version.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:34pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/29 "2021-02-07T16:34:24Z")

</div>

That sounds like it would explain it, but I’m still not sure how I ended up with an old version.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:35pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/30 "2021-02-07T16:35:26Z")

</div>

I tried to update it, but I have now ended up with the version `v2.7.6`. How do I get it to update to the latest one?

```julia
(@v1.5) pkg> update Revise
   Updating registry at `~/.julia/registries/General`
   Updating git-repo `https://github.com/JuliaRegistries/General.git`
  Installed LoweredCodeUtils ── v0.4.9
  Installed CodeTracking ────── v0.5.12
  Installed Tokenize ────────── v0.5.12
  Installed StructTypes ─────── v1.2.3
  Installed WebSockets ──────── v1.5.9
  Installed Revise ──────────── v2.7.6
  Installed CategoricalArrays ─ v0.9.2
Updating `~/.julia/environments/v1.5/Project.toml`
  [295af30f] ↑ Revise v1.0.3 ⇒ v2.7.6
Updating `~/.julia/environments/v1.5/Manifest.toml`
  [324d7699] ↑ CategoricalArrays v0.9.0 ⇒ v0.9.2
  [da1fd8a2] ↓ CodeTracking v1.0.5 ⇒ v0.5.12
  [9a962f9c] ↑ DataAPI v1.4.0 ⇒ v1.5.1
  [31c24e10] ↑ Distributions v0.24.10 ⇒ v0.24.12
  [1a297f60] ↑ FillArrays v0.10.2 ⇒ v0.11.1
  [f6369f11] ↑ ForwardDiff v0.10.14 ⇒ v0.10.16
  [6f1432cf] + LoweredCodeUtils v0.4.9
  [e1d29d7a] ↑ Missings v0.4.4 ⇒ v0.4.5
  [d8a4904e] ↑ MutableArithmetics v0.2.13 ⇒ v0.2.14
  [bac558e1] ↑ OrderedCollections v1.3.2 ⇒ v1.3.3
  [295af30f] ↑ Revise v1.0.3 ⇒ v2.7.6
  [3eaba693] ↑ StatsModels v0.6.18 ⇒ v0.6.21
  [856f2bd8] ↑ StructTypes v1.2.1 ⇒ v1.2.3
  [0796e94c] ↑ Tokenize v0.5.8 ⇒ v0.5.12
  [104b5d7c] ↑ WebSockets v1.5.7 ⇒ v1.5.9

```

---

<div class="post-metadata">

**Author:** ![pdeffebach](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pdeffebach/32/10320_2.png) [@pdeffebach](https://discourse.julialang.org/u/pdeffebach)\
**Post date:** [February 7, 2021, 4:38pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/31 "2021-02-07T16:38:56Z")

</div>

There is some package holding back updating of Revise.

This is a main reason why it’s important to use local environments for everything. Too many packages in your main environment and it becomes difficult to keep the packages you “really need” up to date.

Try `] add Revise@3.1.11` and take a look at that error. If it’s being prevented from updating by some package you don’t need in your global environment, `rm` that package.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:41pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/32 "2021-02-07T16:41:58Z")

</div>

Amazing, it works.

I got this output when updating:

```julia
(@v1.5) pkg> add Revise@3.1.11
  Resolving package versions...
  Installed Juno ───────────── v0.8.4
  Installed BinDeps ────────── v1.0.2
  Installed Atom ───────────── v0.12.30
  Installed StaticArrays ───── v0.12.5
  Installed JuMP ───────────── v0.21.6
  Installed DataFrames ─────── v0.22.5
  Installed PooledArrays ───── v1.1.0
  Installed Documenter ─────── v0.26.1
  Installed JuliaFormatter ─── v0.12.3
  Installed SpecialFunctions ─ v0.8.0
  Installed CSV ────────────── v0.8.3
  Installed PrettyTables ───── v0.11.0
  Installed FuzzyCompletions ─ v0.4.0
Updating `~/.julia/environments/v1.5/Project.toml`
  [c52e3926] ↑ Atom v0.12.21 ⇒ v0.12.30
  [336ed68f] ↑ CSV v0.8.2 ⇒ v0.8.3
  [a93c6f00] ↑ DataFrames v0.22.2 ⇒ v0.22.5
  [864edb3b] ↑ DataStructures v0.18.8 ⇒ v0.18.9
  [2e9cd046] ↑ Gurobi v0.9.6 ⇒ v0.9.8
  [4076af6c] ↑ JuMP v0.21.5 ⇒ v0.21.6
  [e5e0dc1b] ↑ Juno v0.8.3 ⇒ v0.8.4
  [295af30f] ↑ Revise v2.7.6 ⇒ v3.1.11
  [90137ffa] ↑ StaticArrays v0.12.4 ⇒ v0.12.5
  [bd369af6] ↑ Tables v1.2.2 ⇒ v1.3.2
Updating `~/.julia/environments/v1.5/Manifest.toml`
  [c52e3926] ↑ Atom v0.12.21 ⇒ v0.12.30
  [9e28174c] + BinDeps v1.0.2
  [336ed68f] ↑ CSV v0.8.2 ⇒ v0.8.3
  [da1fd8a2] ↑ CodeTracking v0.5.12 ⇒ v1.0.5
  [e66e0078] - CompilerSupportLibraries_jll v0.3.4+0
  [a93c6f00] ↑ DataFrames v0.22.2 ⇒ v0.22.5
  [864edb3b] ↑ DataStructures v0.18.8 ⇒ v0.18.9
  [e30172f5] ↑ Documenter v0.25.5 ⇒ v0.26.1
  [fb4132e2] ↑ FuzzyCompletions v0.2.6 ⇒ v0.4.0
  [2e9cd046] ↑ Gurobi v0.9.6 ⇒ v0.9.8
  [cd3eb016] ↑ HTTP v0.8.19 ⇒ v0.9.2
  [4076af6c] ↑ JuMP v0.21.5 ⇒ v0.21.6
  [98e50ef6] ↑ JuliaFormatter v0.7.6 ⇒ v0.12.3
  [aa1ae85d] ↑ JuliaInterpreter v0.7.26 ⇒ v0.8.8
  [e5e0dc1b] ↑ Juno v0.8.3 ⇒ v0.8.4
  [6f1432cf] ↑ LoweredCodeUtils v0.4.9 ⇒ v1.2.7
  [efe28fd5] - OpenSpecFun_jll v0.5.3+4
  [2dfb63ee] ↑ PooledArrays v0.5.3 ⇒ v1.1.0
  [08abe8d2] ↑ PrettyTables v0.10.1 ⇒ v0.11.0
  [295af30f] ↑ Revise v2.7.6 ⇒ v3.1.11
  [276daf66] ↓ SpecialFunctions v0.10.3 ⇒ v0.8.0
  [90137ffa] ↑ StaticArrays v0.12.4 ⇒ v0.12.5
  [bd369af6] ↑ Tables v1.2.2 ⇒ v1.3.2
  [5c2747f8] + URIs v1.2.0
   Building SpecialFunctions → `~/.julia/packages/SpecialFunctions/ne2iw/deps/build.log`

```

---

<div class="post-metadata">

**Author:** ![Christopher\_Fisher](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/christopher_fisher/32/26132_2.png) [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Post date:** [February 7, 2021, 4:42pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/33 "2021-02-07T16:42:46Z")

</div>

Most likely one of your dependencies in your global environment is blocking Revise from being updated. There are two approaches you can take to resolve. You can run `add Revise @v3.1.11` and systematically remove blocking dependencies, as pdeffebach recommended. This problem will recur periodically. The second approach is to rely on project specific environments, and use your global environment for a few key packages, like Revise. In my experience, the later works better because it avoids version conflicts and gives you more version control and reproducibility for your individual projects.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 4:46pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/34 "2021-02-07T16:46:51Z")

</div>

It didn’t seem to report an error when I updated it, but it did update a bunch of other stuff.

Anyway, thanks everyone. Now I know where to look for this kind of issue in the future.

---

<div class="post-metadata">

**Author:** ![thofma](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/thofma/32/1691_2.png) [@thofma](https://discourse.julialang.org/u/thofma)\
**Post date:** [February 7, 2021, 5:29pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/35 "2021-02-07T17:29:13Z")

</div>

> [@alice](#):
>
> Note: I did try to run `] dev VCLR` in the pkg terminal like in the linked docs, but it emits an error about my package not being in the public package repository, which it indeed is not.

P.S.: You can `dev` a local package by doing `dev /path/to/VCLR`.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 5:30pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/36 "2021-02-07T17:30:04Z")

</div>

What does it actually do?

---

<div class="post-metadata">

**Author:** ![pdeffebach](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pdeffebach/32/10320_2.png) [@pdeffebach](https://discourse.julialang.org/u/pdeffebach)\
**Post date:** [February 7, 2021, 6:38pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/37 "2021-02-07T18:38:59Z")

</div>

When you do `using MyPkg`, Julia looks in a select number of folders for code that contains `MyPkg`.

`dev /path/to/VCLR` will add that path to that list of folders. It also takes care of some dependency management, so you don’t have to use `instantiate` to get set up.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 6:40pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/38 "2021-02-07T18:40:40Z")

</div>

It doesn’t really sound immediately useful to me…

---

<div class="post-metadata">

**Author:** ![pdeffebach](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pdeffebach/32/10320_2.png) [@pdeffebach](https://discourse.julialang.org/u/pdeffebach)\
**Post date:** [February 7, 2021, 6:45pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/39 "2021-02-07T18:45:05Z")

</div>

It’s useful if you want other things to depend on your package.

If you want to create a Voronoi diagram in another project in a separate environment, using `dev` will allow you to use `VCLR` as a dependency.

This is partly what I was saying above about how it’s odd you have `VoronoiCLR` and a bunch of sub-folders. Are you sure that the subfolders `VCLR`, `CLR` etc. shouldn’t be in their own folders? Then `using` them inside `VoronoiCLR`, itself a separate folder? Where you `dev` all the modules you made inside the `VoronoiCLR` environment.

---

<div class="post-metadata">

**Author:** ![alice](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alice/32/20895_2.png) [@alice](https://discourse.julialang.org/u/alice)\
**Post date:** [February 7, 2021, 7:07pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/40 "2021-02-07T19:07:17Z")

</div>

Well, the shared folder contains a bunch of things, but one of them is a branch-and-bound algorithm. The CLR and VCLR folders are two separate implementations of what happens in each branch-and-bound node, which I swap out by using abstract types.

---

<div class="post-metadata">

**Author:** ![pdeffebach](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pdeffebach/32/10320_2.png) [@pdeffebach](https://discourse.julialang.org/u/pdeffebach)\
**Post date:** [February 7, 2021, 7:09pm UTC](https://discourse.julialang.org/t/revise-jl-doesnt-appear-to-do-anything/54788/41 "2021-02-07T19:09:17Z")

</div>

Maybe you can have a `CLRBase` package which contains the overlap between `CLR` and `VCLR`, then separate packages for `CLR` and `VCLR` which both depend on `CLRBase`? That would be the most common way of organizing things.

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