# Error While adding CuArrays.jl package

**URL:** https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387
**Category:** GPU
**Tags:** question, package, gpuarrays
**Created:** [April 1, 2021, 6:46pm UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387 "2021-04-01T18:46:32Z")
**Posts on this page:** 13
**Page:** 1

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 1, 2021, 6:46pm UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/1 "2021-04-01T18:46:32Z")

</div>

There are two problems that I am facing first is that-  
I have tried CUDA.has\_cuda(), and it gave me false.

The second is that when I tried to add CuArrays.jl it gave me this error-

```julia
julia> import Pkg

julia> Pkg.add("CuArrays")
   Updating registry at `~/.julia/registries/General`
┌ Warning: could not download https://pkg.julialang.org/registries
└ @ Pkg.Types /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Types.jl:951
  Resolving package versions...
ERROR: Unsatisfiable requirements detected for package CuArrays [3a865a2d]:
 CuArrays [3a865a2d] log:
 ├─possible versions are: [0.2.1, 0.3.0, 0.4.0, 0.5.0, 0.6.0-0.6.2, 0.7.0-0.7.3, 0.8.0-0.8.1, 0.9.0-0.9.1, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0, 1.4.0-1.4.7, 1.5.0, 1.6.0, 1.7.0-1.7.3, 2.0.0-2.0.1, 2.1.0, 2.2.0-2.2.2] or uninstalled
 ├─restricted to versions * by an explicit requirement, leaving only versions [0.2.1, 0.3.0, 0.4.0, 0.5.0, 0.6.0-0.6.2, 0.7.0-0.7.3, 0.8.0-0.8.1, 0.9.0-0.9.1, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0, 1.4.0-1.4.7, 1.5.0, 1.6.0, 1.7.0-1.7.3, 2.0.0-2.0.1, 2.1.0, 2.2.0-2.2.2]
 ├─restricted by compatibility requirements with CUDAapi [3895d2a7] to versions: [0.6.0-0.6.2, 0.7.0-0.7.3, 0.8.0-0.8.1, 0.9.0-0.9.1, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0, 1.4.0-1.4.7, 1.5.0, 1.6.0, 1.7.0-1.7.3, 2.0.0-2.0.1, 2.1.0, 2.2.0-2.2.2] or uninstalled, leaving only versions: [0.6.0-0.6.2, 0.7.0-0.7.3, 0.8.0-0.8.1, 0.9.0-0.9.1, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0, 1.4.0-1.4.7, 1.5.0, 1.6.0, 1.7.0-1.7.3, 2.0.0-2.0.1, 2.1.0, 2.2.0-2.2.2]
 │ └─CUDAapi [3895d2a7] log:
 │ ├─possible versions are: [0.5.0-0.5.4, 0.6.0-0.6.3, 1.0.0-1.0.1, 1.1.0, 1.2.0, 2.0.0, 2.1.0, 3.0.0, 3.1.0, 4.0.0] or uninstalled
 │ └─restricted by compatibility requirements with CuArrays [3a865a2d] to versions: [0.5.0-0.5.4, 0.6.0-0.6.3, 1.0.0-1.0.1, 1.1.0, 1.2.0, 2.0.0, 2.1.0, 3.0.0, 3.1.0, 4.0.0]
 │ └─CuArrays [3a865a2d] log: see above
 ├─restricted by compatibility requirements with GPUArrays [0c68f7d7] to versions: [0.2.1, 2.0.0-2.0.1, 2.1.0, 2.2.0-2.2.2] or uninstalled, leaving only versions: [2.0.0-2.0.1, 2.1.0, 2.2.0-2.2.2]
 │ └─GPUArrays [0c68f7d7] log:
 │ ├─possible versions are: [0.3.0-0.3.4, 0.4.0-0.4.2, 0.5.0, 0.6.0-0.6.1, 0.7.0-0.7.2, 1.0.0-1.0.4, 2.0.0-2.0.1, 3.0.0-3.0.1, 3.1.0, 3.2.0, 3.3.0, 3.4.0-3.4.1, 4.0.0-4.0.1, 5.0.0, 5.1.0, 5.2.0-5.2.1, 6.0.0-6.0.1, 6.1.0-6.1.2, 6.2.0] or uninstalled
 │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [3.4.0-3.4.1, 4.0.0-4.0.1, 5.0.0, 5.1.0, 5.2.0-5.2.1, 6.0.1, 6.1.0-6.1.2, 6.2.0]
 │ │ └─CUDA [052768ef] log:
 │ │ ├─possible versions are: [0.1.0, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0-1.3.3, 2.0.0-2.0.2, 2.1.0, 2.2.0-2.2.1, 2.3.0, 2.4.0-2.4.2, 2.5.0, 2.6.0-2.6.2] or uninstalled
 │ │ ├─restricted to versions * by an explicit requirement, leaving only versions [0.1.0, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0-1.3.3, 2.0.0-2.0.2, 2.1.0, 2.2.0-2.2.1, 2.3.0, 2.4.0-2.4.2, 2.5.0, 2.6.0-2.6.2]
 │ │ ├─restricted by julia compatibility requirements to versions: [1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0-1.3.3, 2.0.0-2.0.2, 2.1.0, 2.2.0-2.2.1, 2.3.0, 2.4.0-2.4.2] or uninstalled, leaving only versions: [1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0-1.3.3, 2.0.0-2.0.2, 2.1.0, 2.2.0-2.2.1, 2.3.0, 2.4.0-2.4.2]
 │ │ └─restricted by compatibility requirements with LLVM [929cbde3] to versions: [0.1.0, 1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0-1.3.3] or uninstalled, leaving only versions: [1.0.0-1.0.2, 1.1.0, 1.2.0-1.2.1, 1.3.0-1.3.3]
 │ │ └─LLVM [929cbde3] log:
 │ │ ├─possible versions are: [0.9.0-0.9.15, 1.0.0, 1.1.0-1.1.1, 1.2.0, 1.3.0-1.3.4, 1.4.0-1.4.1, 1.5.0-1.5.2, 1.6.0, 1.7.0, 2.0.0, 3.0.0, 3.1.0, 3.2.0, 3.3.0, 3.4.0, 3.5.0-3.5.2, 3.6.0] or uninstalled
 │ │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [1.5.0-1.5.2, 1.6.0, 1.7.0, 2.0.0, 3.0.0, 3.1.0, 3.2.0, 3.3.0, 3.4.0, 3.5.0-3.5.2, 3.6.0]
 │ │ │ └─CUDA [052768ef] log: see above
 │ │ └─restricted by compatibility requirements with CUDAnative [be33ccc6] to versions: [0.9.6-0.9.15, 1.0.0, 1.1.0-1.1.1, 1.2.0, 1.3.0-1.3.4, 1.4.0-1.4.1, 1.5.0-1.5.2, 1.6.0, 1.7.0], leaving only versions: [1.5.0-1.5.2, 1.6.0, 1.7.0]
 │ │ └─CUDAnative [be33ccc6] log:
 │ │ ├─possible versions are: [0.7.0, 0.8.0-0.8.10, 0.9.0-0.9.1, 0.10.0-0.10.1, 1.0.0-1.0.1, 2.0.0-2.0.1, 2.1.0-2.1.3, 2.2.0-2.2.1, 2.3.0-2.3.1, 2.4.0, 2.5.0-2.5.5, 2.6.0, 2.7.0, 2.8.0-2.8.1, 2.9.0-2.9.1, 2.10.0-2.10.2, 3.0.0-3.0.4, 3.1.0, 3.2.0] or uninstalled
 │ │ ├─restricted by compatibility requirements with CuArrays [3a865a2d] to versions: [0.7.0, 0.8.0-0.8.10, 0.9.0-0.9.1, 0.10.0-0.10.1, 1.0.0-1.0.1, 2.0.0-2.0.1, 2.1.0-2.1.3, 2.2.0-2.2.1, 2.3.0-2.3.1, 2.4.0, 2.5.0-2.5.5, 2.6.0, 2.7.0, 2.8.0-2.8.1, 2.9.0-2.9.1, 2.10.0-2.10.2, 3.0.0-3.0.4, 3.1.0, 3.2.0]
 │ │ │ └─CuArrays [3a865a2d] log: see above
 │ │ ├─restricted by compatibility requirements with Adapt [79e6a3ab] to versions: [0.7.0, 0.8.0-0.8.10, 0.9.0-0.9.1, 2.2.1, 2.3.0-2.3.1, 2.4.0, 2.5.0-2.5.5, 2.6.0, 2.7.0, 2.8.0-2.8.1, 2.9.0-2.9.1, 2.10.0-2.10.2, 3.0.0-3.0.4, 3.1.0, 3.2.0] or uninstalled, leaving only versions: [0.7.0, 0.8.0-0.8.10, 0.9.0-0.9.1, 2.2.1, 2.3.0-2.3.1, 2.4.0, 2.5.0-2.5.5, 2.6.0, 2.7.0, 2.8.0-2.8.1, 2.9.0-2.9.1, 2.10.0-2.10.2, 3.0.0-3.0.4, 3.1.0, 3.2.0]
 │ │ │ └─Adapt [79e6a3ab] log:
 │ │ │ ├─possible versions are: [0.3.0-0.3.1, 0.4.0-0.4.2, 1.0.0-1.0.1, 1.1.0, 2.0.0-2.0.2, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 3.0.0, 3.1.0-3.1.1, 3.2.0] or uninstalled
 │ │ │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [1.0.0-1.0.1, 1.1.0, 2.0.0-2.0.2, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 3.0.0, 3.1.0-3.1.1, 3.2.0]
 │ │ │ │ └─CUDA [052768ef] log: see above
 │ │ │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [2.0.0-2.0.2, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 3.0.0, 3.1.0-3.1.1, 3.2.0]
 │ │ │ │ └─CUDA [052768ef] log: see above
 │ │ │ └─restricted by compatibility requirements with CUDA [052768ef] to versions: [2.0.0-2.0.2, 2.1.0, 2.2.0, 2.3.0, 2.4.0]
 │ │ │ └─CUDA [052768ef] log: see above
 │ │ └─restricted by compatibility requirements with GPUCompiler [61eb1bfa] to versions: [0.7.0, 0.8.0-0.8.10, 0.9.0-0.9.1, 0.10.0-0.10.1, 1.0.0-1.0.1, 2.0.0-2.0.1, 2.1.0-2.1.3, 2.2.0-2.2.1, 2.3.0-2.3.1, 2.4.0, 2.5.0-2.5.5, 2.6.0, 2.7.0, 2.8.0-2.8.1, 2.9.0-2.9.1, 2.10.0-2.10.2, 3.0.0-3.0.4] or uninstalled, leaving only versions: [0.7.0, 0.8.0-0.8.10, 0.9.0-0.9.1, 2.2.1, 2.3.0-2.3.1, 2.4.0, 2.5.0-2.5.5, 2.6.0, 2.7.0, 2.8.0-2.8.1, 2.9.0-2.9.1, 2.10.0-2.10.2, 3.0.0-3.0.4]
 │ │ └─GPUCompiler [61eb1bfa] log:
 │ │ ├─possible versions are: [0.1.0, 0.2.0, 0.3.0, 0.4.0-0.4.1, 0.5.0-0.5.5, 0.6.0-0.6.1, 0.7.0-0.7.3, 0.8.0-0.8.3, 0.9.0-0.9.2, 0.10.0, 0.11.0] or uninstalled
 │ │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [0.3.0, 0.4.0-0.4.1, 0.5.0-0.5.5, 0.6.0-0.6.1, 0.7.0-0.7.3, 0.8.1-0.8.3, 0.9.0-0.9.2, 0.10.0]
 │ │ │ └─CUDA [052768ef] log: see above
 │ │ ├─restricted by julia compatibility requirements to versions: [0.1.0, 0.2.0, 0.3.0, 0.4.0-0.4.1, 0.5.0-0.5.5, 0.6.0-0.6.1, 0.7.0-0.7.3, 0.8.0-0.8.3] or uninstalled, leaving only versions: [0.3.0, 0.4.0-0.4.1, 0.5.0-0.5.5, 0.6.0-0.6.1, 0.7.0-0.7.3, 0.8.1-0.8.3]
 │ │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [0.4.0-0.4.1, 0.5.0-0.5.5, 0.6.0-0.6.1, 0.7.0-0.7.3, 0.8.1-0.8.3]
 │ │ │ └─CUDA [052768ef] log: see above
 │ │ └─restricted by compatibility requirements with LLVM [929cbde3] to versions: [0.1.0, 0.2.0, 0.3.0, 0.4.0-0.4.1] or uninstalled, leaving only versions: 0.4.0-0.4.1
 │ │ └─LLVM [929cbde3] log: see above
 │ ├─restricted by compatibility requirements with CUDA [052768ef] to versions: [4.0.0-4.0.1, 5.0.0, 5.1.0, 5.2.0-5.2.1, 6.0.1, 6.1.0-6.1.2, 6.2.0]
 │ │ └─CUDA [052768ef] log: see above
 │ └─restricted by compatibility requirements with CUDA [052768ef] to versions: [4.0.0-4.0.1, 5.0.0, 5.1.0, 5.2.0-5.2.1]
 │ └─CUDA [052768ef] log: see above
 └─restricted by compatibility requirements with GPUArrays [0c68f7d7] to versions: 0.2.1 or uninstalled — no versions left
   └─GPUArrays [0c68f7d7] log: see above
Stacktrace:
 [1] propagate_constraints!(::Pkg.Resolve.Graph, ::Set{Int64}; log_events::Bool) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Resolve/graphtype.jl:1005
 [2] propagate_constraints! at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Resolve/graphtype.jl:946 [inlined] (repeats 2 times)
 [3] simplify_graph!(::Pkg.Resolve.Graph, ::Set{Int64}; clean_graph::Bool) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Resolve/graphtype.jl:1460
 [4] simplify_graph! at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Resolve/graphtype.jl:1460 [inlined] (repeats 2 times)
 [5] resolve_versions!(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:375
 [6] targeted_resolve at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1114 [inlined]
 [7] tiered_resolve(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1100
 [8] _resolve at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1120 [inlined]
 [9] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Array{Base.UUID,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Linux) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/Operations.jl:1135
 [10] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Linux, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:188
 [11] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:139
 [12] #add#21 at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67 [inlined]
 [13] add at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:67 [inlined]
 [14] #add#20 at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:66 [inlined]
 [15] add at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:66 [inlined]
 [16] add(::String; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:65
 [17] add(::String) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/Pkg/src/API.jl:65
 [18] top-level scope at REPL[151]:1

```

Please help me out; I am new to GPU computation.

---

<div class="post-metadata">

### Author: ![jpsamaroo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jpsamaroo/32/46804_2.png) [@jpsamaroo](https://discourse.julialang.org/u/jpsamaroo)
#### Post date: [April 1, 2021, 9:02pm UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/2 "2021-04-01T21:02:47Z")

</div>

> [@Sumanshekhar17](#):
>
> I have tried CUDA.has\_cuda(), and it gave me false.

Can you share your `CUDA.versioninfo()`?

> [@Sumanshekhar17](#):
>
> The second is that when I tried to add CuArrays.jl it gave me this error-

Don’t use CuArrays.jl, that package is no longer needed, since everything is included in CUDA.jl. You’re getting a version error because CuArrays is unmaintained and doesn’t support any recent versions of packages.

---

<div class="post-metadata">

### Author: ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)
#### Post date: [April 2, 2021, 8:36am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/3 "2021-04-02T08:36:06Z")

</div>

If `has_cuda()` returns false, it can’t find `libcuda.so`. That’s a system library you should put in a discoverable location (e.g. by adding an entry to `/etc/ld.so.conf`).

---

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 2, 2021, 8:36am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/4 "2021-04-02T08:36:48Z")

</div>

> [@jpsamaroo](#):
>
> CUDA.versioninfo()

```julia
julia> using CUDA

julia> CUDA.versioninfo()
┌ Error: Recursion during initialization of CUDA.jl
└ @ CUDA ~/.julia/packages/CUDA/fqK2Y/src/initialization.jl:38
┌ Error: Error during initialization of CUDA.jl
│ exception =
│ CUDA error (code 100, CUDA_ERROR_NO_DEVICE)
│ Stacktrace:
│ [1] throw_api_error(::CUDA.cudaError_enum) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/lib/cudadrv/error.jl:97
│ [2] __configure__ () at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:93
│ [3] macro expansion at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:30 [inlined]
│ [4] macro expansion at ./lock.jl:183 [inlined]
│ [5] _functional(::Bool) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:26
│ [6] functional(::Bool) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:19
│ [7] macro expansion at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:47 [inlined]
│ [8] toolkit_version at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/deps/bindeps.jl:26 [inlined]
│ [9] versioninfo(::Base.TTY) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/utilities.jl:43 (repeats 2 times)
│ [10] top-level scope at REPL[149]:1
│ [11] eval(::Module, ::Any) at ./boot.jl:331
│ [12] eval_user_input(::Any, ::REPL.REPLBackend) at /jobfs/14911938.gadi-pbs/0/julia/1.5.3/source/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:134
│ [13] repl_backend_loop(::REPL.REPLBackend) at /jobfs/14911938.gadi-pbs/0/julia/1.5.3/source/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:195
│ [14] start_repl_backend(::REPL.REPLBackend, ::Any) at /jobfs/14911938.gadi-pbs/0/julia/1.5.3/source/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:180
│ [15] run_repl(::REPL.AbstractREPL, ::Any; backend_on_current_task::Bool) at /jobfs/14911938.gadi-pbs/0/julia/1.5.3/source/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:292
│ [16] run_repl(::REPL.AbstractREPL, ::Any) at /jobfs/14911938.gadi-pbs/0/julia/1.5.3/source/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:288
│ [17] (::Base.var"#807#809"{Bool,Bool,Bool,Bool})(::Module) at ./client.jl:399
│ [18] #invokelatest#1 at ./essentials.jl:710 [inlined]
│ [19] invokelatest at ./essentials.jl:709 [inlined]
│ [20] run_main_repl(::Bool, ::Bool, ::Bool, ::Bool, ::Bool) at ./client.jl:383
│ [21] exec_options(::Base.JLOptions) at ./client.jl:313
│ [22] _start() at ./client.jl:506
└ @ CUDA ~/.julia/packages/CUDA/fqK2Y/src/initialization.jl:34
ERROR: CUDA.jl did not successfully initialize, and is not usable.
If you did not see any other error message, try again in a new session
with the JULIA_DEBUG environment variable set to 'CUDA'.
Stacktrace:
 [1] error(::String) at ./error.jl:33
 [2] macro expansion at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:48 [inlined]
 [3] toolkit_version at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/deps/bindeps.jl:26 [inlined]
 [4] versioninfo(::Base.TTY) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/utilities.jl:43 (repeats 2 times)
 [5] top-level scope at REPL[149]:1

```

This throws some error.

---

<div class="post-metadata">

### Author: ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)
#### Post date: [April 2, 2021, 8:38am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/5 "2021-04-02T08:38:07Z")

</div>

“some error” being `CUDA_ERROR_NO_DEVICE`, indicating that you don’t have a GPU? Or that you’ve set CUDA\_VISIBLE\_DEVICES to a value that excludes any of your GPUs, or something like that. Either way, a system configuration issue.

---

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 2, 2021, 8:43am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/6 "2021-04-02T08:43:35Z")

</div>

@maleadt , sorry sir, you are correct. I have tried this command on a normal node. I thought it has to do with just CUDA modules and file. Pardon me. I will check in the GPU backed node.

---

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 2, 2021, 9:05am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/7 "2021-04-02T09:05:37Z")

</div>

@maleadt ,@jpsamaroo,

```julia
julia> using CUDA

julia> CUDA.versioninfo()
Downloading artifact: CUDA110
-=O=- # # # #  
Downloading artifact: CUDA110
-=O=- # # # #    
Downloading artifact: CUDA102
-=O=- # # # #       
Downloading artifact: CUDA102
-=O=- # # # #       
Downloading artifact: CUDA101
-=O=- # # # #       
Downloading artifact: CUDA101
-=O=- # # # #       
┌ Error: Error during initialization of CUDA.jl
│ exception =
│ Could not find a suitable CUDA installation
│ Stacktrace:
│ [1] error(::String) at ./error.jl:33
│ [2] __runtime_init__ () at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:103
│ [3] macro expansion at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:32 [inlined]
│ [4] macro expansion at ./lock.jl:183 [inlined]
│ [5] _functional(::Bool) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:26
│ [6] functional(::Bool) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:19
│ [7] macro expansion at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:47 [inlined]
│ [8] toolkit_version at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/deps/bindeps.jl:26 [inlined]
│ [9] versioninfo(::Base.TTY) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/utilities.jl:43 (repeats 2 times)
│ [10] top-level scope at REPL[149]:1
│ [11] eval(::Module, ::Any) at ./boot.jl:331
│ [12] eval_user_input(::Any, ::REPL.REPLBackend) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:134
│ [13] repl_backend_loop(::REPL.REPLBackend) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:195
│ [14] start_repl_backend(::REPL.REPLBackend, ::Any) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:180
│ [15] run_repl(::REPL.AbstractREPL, ::Any; backend_on_current_task::Bool) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:292
│ [16] run_repl(::REPL.AbstractREPL, ::Any) at /scratch/ds2/julia/julia/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:288
│ [17] (::Base.var"#807#809"{Bool,Bool,Bool,Bool})(::Module) at ./client.jl:399
│ [18] #invokelatest#1 at ./essentials.jl:710 [inlined]
│ [19] invokelatest at ./essentials.jl:709 [inlined]
│ [20] run_main_repl(::Bool, ::Bool, ::Bool, ::Bool, ::Bool) at ./client.jl:383
│ [21] exec_options(::Base.JLOptions) at ./client.jl:313
│ [22] _start() at ./client.jl:506
└ @ CUDA ~/.julia/packages/CUDA/fqK2Y/src/initialization.jl:34
ERROR: CUDA.jl did not successfully initialize, and is not usable.
If you did not see any other error message, try again in a new session
with the JULIA_DEBUG environment variable set to 'CUDA'.
Stacktrace:
 [1] error(::String) at ./error.jl:33
 [2] macro expansion at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/initialization.jl:48 [inlined]
 [3] toolkit_version at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/deps/bindeps.jl:26 [inlined]
 [4] versioninfo(::Base.TTY) at /home/552/ss1986/.julia/packages/CUDA/fqK2Y/src/utilities.jl:43 (repeats 2 times)
 [5] top-level scope at REPL[149]:1

```

---

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 2, 2021, 9:18am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/8 "2021-04-02T09:18:06Z")

</div>

> [@jpsamaroo](#):
>
> CUDA.versioninfo()

I again added CUDA hoping that there might be some problem in installing and again installing CUDA can rebuild things.

```julia

julia> CUDA.version()
v"11.0.0"

```

Now it give me this.

---

<div class="post-metadata">

### Author: ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)
#### Post date: [April 2, 2021, 9:24am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/9 "2021-04-02T09:24:23Z")

</div>

> [@Sumanshekhar17](#):
>
> ```julia
> ERROR: CUDA.jl did not successfully initialize, and is not usable.
> If you did not see any other error message, try again in a new session
> with the JULIA_DEBUG environment variable set to 'CUDA'.
> 
> ```

The error message is pretty clear on what you should try. Or does everything work now, as per your last post?

---

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 2, 2021, 9:28am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/10 "2021-04-02T09:28:36Z")

</div>

Sir can you point out how to do that. I have no idea about it. How to set JULIA\_DEBUG environment variable?

---

<div class="post-metadata">

### Author: ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)
#### Post date: [April 2, 2021, 9:32am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/11 "2021-04-02T09:32:18Z")

</div>

Depends on how you start Julia, but from the terminal you could do `JULIA_DEBUG=CUDA julia ...`.

---

<div class="post-metadata">

### Author: ![Sumanshekhar17](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sumanshekhar17/32/23537_2.png) [@Sumanshekhar17](https://discourse.julialang.org/u/Sumanshekhar17)
#### Post date: [April 2, 2021, 9:37am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/12 "2021-04-02T09:37:24Z")

</div>

Sir, I use ubuntu. Julia is installed in one directory and I use to call julia in that perticular directory. This is how I use julia REPL. The moment I used this command I got this

```julia
[ss1986@gadi-login-06 ~]$ cd /scratch/ds2/julia/julia
[ss1986@gadi-login-06 julia]$ JULIA_DEBUG=CUDA julia ....
bash: julia: command not found
[ss1986@gadi-login-06 julia]$ 

```

---

<div class="post-metadata">

### Author: ![roflmaostc](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/roflmaostc/32/30123_2.png) [@roflmaostc](https://discourse.julialang.org/u/roflmaostc)
#### Post date: [April 2, 2021, 10:02am UTC](https://discourse.julialang.org/t/error-while-adding-cuarrays-jl-package/58387/13 "2021-04-02T10:02:13Z")

</div>

Try to replace `julia` with `./path/to/bin/julia` but don’t forget the leading debug variable