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### Running command:
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###   /Library/Frameworks/R.framework/Resources/bin/R CMD build --keep-empty-dirs --no-resave-data gpuMagic
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* checking for file ‘gpuMagic/DESCRIPTION’ ... OK
* preparing ‘gpuMagic’:
* checking DESCRIPTION meta-information ... OK
* cleaning src
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘Customized-openCL-code.Rmd’ using rmarkdown
UNSUPPORTED (log once): createKernel: newComputePipelineState failed

Quitting from Customized-openCL-code.Rmd:39-71 [unnamed-chunk-1]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `.kernel()`:
! Fail to create kernel, error info: CL_INVALID_KERNEL
---
Backtrace:
    ▆
 1. └─gpuMagic::.kernel(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Customized-openCL-code.Rmd' failed with diagnostics:
Fail to create kernel, error info: CL_INVALID_KERNEL
--- failed re-building ‘Customized-openCL-code.Rmd’

--- re-building ‘Quick_start_guide.Rmd’ using rmarkdown

Quitting from Quick_start_guide.Rmd:74-78 [unnamed-chunk-6]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `.kernel()`:
! Fail to create kernel, error info: CL_INVALID_KERNEL
---
Backtrace:
    ▆
 1. └─gpuMagic::gpuSapply(1:k, matMul, A, B)
 2.   └─gpuMagic:::gpuSapply_singleDev(...)
 3.     └─gpuMagic::.kernel(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Quick_start_guide.Rmd' failed with diagnostics:
Fail to create kernel, error info: CL_INVALID_KERNEL
--- failed re-building ‘Quick_start_guide.Rmd’

SUMMARY: processing the following files failed:
  ‘Customized-openCL-code.Rmd’ ‘Quick_start_guide.Rmd’

Error: Vignette re-building failed.
Execution halted