# Error loading FileIOExt

**URL:** <https://discourse.julialang.org/t/error-loading-fileioext/112353>\
**Category:** Visualization\
**Tags:** question, package, plots\
**Created:** [March 31, 2024, 2:21pm UTC](https://discourse.julialang.org/t/error-loading-fileioext/112353 "2024-03-31T14:21:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ufechner7](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ufechner7/32/51363_2.png) [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Post date:** [March 31, 2024, 2:21pm UTC](https://discourse.julialang.org/t/error-loading-fileioext/112353/1 "2024-03-31T14:21:39Z")

</div>

When I type:

```julia
using Plots

```

I get the following error message:

```julia
┌ Warning: Module FileIOExt with build ID ffffffff-ffff-ffff-0000-0a3d1eb7c6d1 is missing from the cache.
│ This may mean FileIOExt [f5f51d8f-5827-5d2e-939b-192fcd6ec70c] does not support precompilation but is imported by a module that does.
└ @ Base loading.jl:1948
┌ Error: Error during loading of extension FileIOExt of Plots, use `Base.retry_load_extensions()` to retry.
│ exception =
│ 1-element ExceptionStack:
│ Declaring __precompile__ (false) is not allowed in files that are being precompiled.
│ Stacktrace:
│ [1] _require(pkg::Base.PkgId, env::Nothing)
│ @ Base ./loading.jl:1952
│ [2] __require_prelocked(uuidkey::Base.PkgId, env::Nothing)
│ @ Base ./loading.jl:1812
│ [3] #invoke_in_world#3
│ @ ./essentials.jl:926 [inlined]
│ [4] invoke_in_world
│ @ ./essentials.jl:923 [inlined]
│ [5] _require_prelocked
│ @ ./loading.jl:1803 [inlined]
│ [6] _require_prelocked
│ @ ./loading.jl:1802 [inlined]
│ [7] run_extension_callbacks(extid::Base.ExtensionId)
│ @ Base ./loading.jl:1295
│ [8] run_extension_callbacks(pkgid::Base.PkgId)
│ @ Base ./loading.jl:1330
│ [9] run_package_callbacks(modkey::Base.PkgId)
│ @ Base ./loading.jl:1164
│ [10] __require_prelocked(uuidkey::Base.PkgId, env::String)
│ @ Base ./loading.jl:1819
│ [11] #invoke_in_world#3
│ @ ./essentials.jl:926 [inlined]
│ [12] invoke_in_world
│ @ ./essentials.jl:923 [inlined]
│ [13] _require_prelocked
│ @ ./loading.jl:1803 [inlined]
│ [14] macro expansion
│ @ ./loading.jl:1790 [inlined]
│ [15] macro expansion
│ @ ./lock.jl:267 [inlined]
│ [16] __require(into::Module, mod::Symbol)
│ @ Base ./loading.jl:1753
│ [17] #invoke_in_world#3
│ @ ./essentials.jl:926 [inlined]
│ [18] invoke_in_world
│ @ ./essentials.jl:923 [inlined]
│ [19] require(into::Module, mod::Symbol)
│ @ Base ./loading.jl:1746
│ [20] include
│ @ ./Base.jl:495 [inlined]
│ [21] 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, UInt128}}, source::String)
│ @ Base ./loading.jl:2222
│ [22] top-level scope
│ @ stdin:3
│ [23] eval
│ @ ./boot.jl:385 [inlined]
│ [24] include_string(mapexpr::typeof(identity), mod::Module, code::String, filename::String)
│ @ Base ./loading.jl:2076
│ [25] include_string
│ @ ./loading.jl:2086 [inlined]
│ [26] exec_options(opts::Base.JLOptions)
│ @ Base ./client.jl:316
│ [27] _start()
│ @ Base ./client.jl:552
└ @ Base loading.jl:1301

```

Any idea?

Using Julia 1.10.2 on Ubuntu 22.04.