# Error while installing a package

**URL:** <https://discourse.julialang.org/t/error-while-installing-a-package/116678>\
**Category:** New to Julia\
**Tags:** question, package\
**Created:** [July 5, 2024, 7:58pm UTC](https://discourse.julialang.org/t/error-while-installing-a-package/116678 "2024-07-05T19:58:16Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![pragy\_r](https://avatars.discourse-cdn.com/v4/letter/p/5f9b8f/32.png) [@pragy\_r](https://discourse.julialang.org/u/pragy_r)\
**Post date:** [July 5, 2024, 7:58pm UTC](https://discourse.julialang.org/t/error-while-installing-a-package/116678/1 "2024-07-05T19:58:16Z")

</div>

Hi all, I am very new to julia and i have been trying to install this package - PANDA. all but one of its dependencies are not getting precompiled and installed. This is the error message that I am getting:

```julia
 70 dependencies successfully precompiled in 326 seconds. 182 already precompiled.
  2 dependencies failed but may be precompilable after restarting julia
  4 dependencies had output during precompilation:
┌ ModelingToolkit
│ WARNING: using OrdinaryDiffEq.isconstant in module ModelingToolkit conflicts with an existing identifier.
│ WARNING: using OrdinaryDiffEq.islinear in module ModelingToolkit conflicts with an existing identifier.
└  
┌ PANDA
│ WARNING: Method definition kwcall(NamedTuple{names, T} where T<:Tuple where names, typeof(SciMLBase.__solve), SciMLBase.AbstractJumpProblem{P, J} where J, SciMLBase.AbstractDEAlgorithm, Any, Any, Any, Type{Base.Val{recompile_flag}}) where {P, recompile_flag} in module JumpProcesses at /pfs/home/pragya/.julia/packages/JumpProcesses/HPjOl/src/solve.jl:1 overwritten in module DiffEqJump at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/solve.jl:1.
│ ERROR: Method overwriting is not permitted during Module precompilation. Use ` __precompile__ (false)` to opt-out of precompilation.
└  
┌ DifferentialEquations
│ WARNING: Method definition kwcall(NamedTuple{names, T} where T<:Tuple where names, typeof(SciMLBase.__solve), SciMLBase.AbstractJumpProblem{P, J} where J, SciMLBase.AbstractDEAlgorithm, Any, Any, Any, Type{Base.Val{recompile_flag}}) where {P, recompile_flag} in module JumpProcesses at /pfs/home/pragya/.julia/packages/JumpProcesses/HPjOl/src/solve.jl:1 overwritten in module DiffEqJump at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/solve.jl:1.
│ ERROR: Method overwriting is not permitted during Module precompilation. Use ` __precompile__ (false)` to opt-out of precompilation.
└  
┌ DiffEqJump
│ WARNING: method definition for #MassActionJump#8 at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/jumps.jl:251 declares type variable U but does not use it.
│ WARNING: method definition for #MassActionJump#8 at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/jumps.jl:251 declares type variable S but does not use it.
│ WARNING: method definition for #MassActionJump#9 at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/jumps.jl:256 declares type variable U but does not use it.
│ WARNING: method definition for #MassActionJump#9 at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/jumps.jl:256 declares type variable S but does not use it.
│ WARNING: method definition for #RDirectJumpAggregation#62 at /pfs/home/pragya/.julia/packages/DiffEqJump/o61Dj/src/aggregators/rdirect.jl:23 declares type variable DEPGR but does not use it.

```

any idea how to deal with this?

---

<div class="post-metadata">

**Author:** ![dqeeq](https://avatars.discourse-cdn.com/v4/letter/d/b9e5f3/32.png) [@dqeeq](https://discourse.julialang.org/u/dqeeq)\
**Post date:** [July 5, 2024, 8:35pm UTC](https://discourse.julialang.org/t/error-while-installing-a-package/116678/2 "2024-07-05T20:35:36Z")

</div>

Welcome to the community!

Can you run

```julia
julia>err

```

and check the names of the packages that failed, and the reason they failed