This is most likely unrelated to the aroma framework and more likely
to be related to a setup issue with one of your PNG device drivers.
To troubleshoot, what does the following output give if you start a
fresh R session:

library("aroma.core");
pngDev <- findPngDevice(transparent=FALSE, force=TRUE);
print(pngDev);
pngDev("foo.png"); plot(1:10); dev.off();

/Henrik

On Wed, Jun 27, 2012 at 6:19 AM, mangoC <ariesliu...@gmail.com> wrote:
> Hello there,
>
> I had a look at archive with similar topics but haven't been able to find a
> solution. So I am posting the error msg, if any one could drop some hints on
> how to solve the problem. Many thanks.
>
>>library(aroma.affymetrix);
>>library(aroma.core);
> When I do
>>process(ae, verbose=verbose);
>
> Generating ArrayExplorer report...
>  Color maps: log2,log2neg,rainbow, log2,log2pos,rainbow
>  Chip type: HuEx-1_0-st-v2,coreR3,A20071112,EP
> .
> .
>
> Error in library.dynam(lib, package, package.lib) :
>   shared object ‘png.so’ not found
> Generating ArrayExplorer report...done
>
>>sessionInfo()
> R version 2.15.0 (2012-03-30)
> Platform: x86_64-redhat-linux-gnu (64-bit)
>
> locale:
>  [1] LC_CTYPE=en_US.utf8       LC_NUMERIC=C
>  [3] LC_TIME=en_US.utf8        LC_COLLATE=en_US.utf8
>  [5] LC_MONETARY=en_US.utf8    LC_MESSAGES=en_US.utf8
>  [7] LC_PAPER=C                LC_NAME=C
>  [9] LC_ADDRESS=C              LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
>  [1] preprocessCore_1.18.0  Biobase_2.16.0         BiocGenerics_0.2.0
>  [4] aroma.affymetrix_2.5.0 affxparser_1.28.0      aroma.apd_0.2.2
>  [7] R.huge_0.4.0           aroma.core_2.5.0       aroma.light_1.24.0
> [10] matrixStats_0.5.0      R.rsp_0.7.5            R.cache_0.6.2
> [13] R.filesets_1.1.5       digest_0.5.2           R.utils_1.12.1
> [16] R.oo_1.9.3             affy_1.34.0            R.methodsS3_1.2.2
>
> loaded via a namespace (and not attached):
> [1] affyio_1.24.0       BiocInstaller_1.4.7 tools_2.15.0
> [4] zlibbioc_1.2.0
>
>
> .
>
>
>
> --
> When reporting problems on aroma.affymetrix, make sure 1) to run the latest
> version of the package, 2) to report the output of sessionInfo() and
> traceback(), and 3) to post a complete code example.
>
>
> You received this message because you are subscribed to the Google Groups
> "aroma.affymetrix" group with website http://www.aroma-project.org/.
> To post to this group, send email to aroma-affymetrix@googlegroups.com
> To unsubscribe and other options, go to http://www.aroma-project.org/forum/

-- 
When reporting problems on aroma.affymetrix, make sure 1) to run the latest 
version of the package, 2) to report the output of sessionInfo() and 
traceback(), and 3) to post a complete code example.


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