# Help needed with CUDA

**URL:** <https://discourse.julialang.org/t/help-needed-with-cuda/63923>\
**Category:** GPU\
**Created:** [July 2, 2021, 5:22am UTC](https://discourse.julialang.org/t/help-needed-with-cuda/63923 "2021-07-02T05:22:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fabrice\_Rosay](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fabrice_rosay/32/15689_2.png) [@Fabrice\_Rosay](https://discourse.julialang.org/u/Fabrice_Rosay)\
**Post date:** [July 2, 2021, 5:22am UTC](https://discourse.julialang.org/t/help-needed-with-cuda/63923/1 "2021-07-02T05:22:10Z")

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“Oups I did it again”, but I don’t really know what. Suddenly CUDA won’t compile anymore.

I got a warning message:  
WARNING: both ExprTools and LLVM export “parameters”; uses of it in module CUDA must be qualified  
and then  
ERROR: LoadError: MethodError: no method matching parameters(::LLVM.FunctionType).  
I tried rm package installing it @master or other versions and nothing worked. I can’t figure what happened.  
Any help would be much appreciated.  
F.

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**Author:** ![marius311](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/marius311/32/3953_2.png) [@marius311](https://discourse.julialang.org/u/marius311)\
**Post date:** [July 2, 2021, 6:18am UTC](https://discourse.julialang.org/t/help-needed-with-cuda/63923/2 "2021-07-02T06:18:06Z")

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See [Both ExprTools and LLVM export "parameters" · Issue #214 · JuliaGPU/GPUCompiler.jl · GitHub](https://github.com/JuliaGPU/GPUCompiler.jl/issues/214)

A workaround is `pkg> add ExprTools@0.1.3`

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<div class="post-metadata">

**Author:** ![Fabrice\_Rosay](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fabrice_rosay/32/15689_2.png) [@Fabrice\_Rosay](https://discourse.julialang.org/u/Fabrice_Rosay)\
**Post date:** [July 2, 2021, 6:31am UTC](https://discourse.julialang.org/t/help-needed-with-cuda/63923/3 "2021-07-02T06:31:39Z")

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Thank you !