v1.12 precompilation error

[jlchan]

My package StartUpDG.jl encounters a precompilation error with v1.12 related to FillArraysStatisticsExt. The error disappears if I switch to v1.11.

Unfortunately, the stacktrace doesn't tell much; when I try to precompile StartUpDG.jl I get

julia> Pkg.precompile(strict=true)
Precompiling project...
  ✗ FillArrays → FillArraysStatisticsExt
  ✗ StartUpDG
  0 dependencies successfully precompiled in 1 seconds. 93 already precompiled.

ERROR: The following 2 dependencies failed to precompile:

FillArraysStatisticsExt [6aab314e-91af-578f-94bd-30d484db1c87]

Failed to precompile FillArraysStatisticsExt [6aab314e-91af-578f-94bd-30d484db1c87] to "/Users/jchan985/.julia/compiled/v1.10/FillArraysStatisticsExt/jl_MJjQer".

StartUpDG [472ebc20-7c99-4d4b-9470-8fde4e9faa0f]

Failed to precompile StartUpDG [472ebc20-7c99-4d4b-9470-8fde4e9faa0f] to "/Users/jchan985/.julia/compiled/v1.10/StartUpDG/jl_FuDW6N".

Stacktrace:
 [1] pkgerror(msg::String)
   @ Pkg.Types ~/.julia/juliaup/julia-1.10.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/Types.jl:70
 [2] precompile(ctx::Pkg.Types.Context, pkgs::Vector{…}; internal_call::Bool, strict::Bool, warn_loaded::Bool, already_instantiated::Bool, timing::Bool, _from_loading::Bool, kwargs::@Kwargs{…})
   @ Pkg.API ~/.julia/juliaup/julia-1.10.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:1659
 [3] precompile(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::@Kwargs{strict::Bool})
   @ Pkg.API ~/.julia/juliaup/julia-1.10.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:159
 [4] precompile(; name::Nothing, uuid::Nothing, version::Nothing, url::Nothing, rev::Nothing, path::Nothing, mode::Pkg.Types.PackageMode, subdir::Nothing, kwargs::@Kwargs{…})
   @ Pkg.API ~/.julia/juliaup/julia-1.10.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.10/Pkg/src/API.jl:174
 [5] top-level scope
   @ REPL[4]:1
Some type information was truncated. Use `show(err)` to see complete types.

Any suggestions for how to debug this?

[jlchan]

Nevermind, sorry - was a corrupted precompilation file. Removing it fixed this.