Hi,

I have a problem on my mac when trying in R to produce png images.

I am getting this warnings with the ArrayQualityMetrics package:

> arrayQualityMetrics(rma_fatBody, outdir="normData", force =T)
The report will be written into directory 'normData'.
KernSmooth 2.23 loaded
Copyright M. P. Wand 1997-2009

(loaded the KernSmooth namespace)
libpng warning: Application built with libpng-1.2.26 but running with 1.5.2
[[1]]

libpng warning: Application built with libpng-1.2.26 but running with 1.5.2
libpng warning: Application built with libpng-1.2.26 but running with 1.5.2

libpng warning: Application built with libpng-1.2.26 but running with 1.5.2

I am running the R 2.14 version using the R studio GUI.

I am not excatly sure about the libpng problem. When I am doing locate
libpng-config I'm getting several hits, some with libong-config12, some
with libpng-config14, some without nay numbers:

ayeroslaviz:~ ayeroslaviz$ locate libpng-config
/Applications/XAMPP/xamppfiles/bin/libpng-config
/Library/Frameworks/GTK+.framework/Versions/2.18.X11/Resources/bin/libpng-config
/opt/local/bin/libpng-config
/usr/X11/bin/libpng-config
/usr/local/bin/libpng-config

When doing which libpng-config I'm getting: /usr/local/bin/libpng-config

Is there a way to uninstall older versions of libpng or update the paths to
the right version. Unfortunately I am not even sure, what thesource of this
warning, so I hope I gave here all the needed information.

I would be grateful for anyone who gives me a hint about how to solve this
problem.

thanks

A.

> sessionInfo()
R version 2.14.0 (2011-10-31)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] C/en_US.UTF-8/C/C/C/C

attached base packages:
[1] splines   stats     graphics  grDevices utils     datasets  methods
base

other attached packages:
 [1] mirna20cdf_2.9.1          AnnotationDbi_1.14.1
arrayQualityMetrics_3.2.3 vsn_3.18.0
affyPLM_1.26.0
 [6] preprocessCore_1.12.0     simpleaffy_2.26.1
gcrma_2.22.0              genefilter_1.32.0
siggenes_1.24.0
[11] multtest_2.8.0            affy_1.28.0
Biobase_2.10.0            BiocInstaller_1.2.1

loaded via a namespace (and not attached):
 [1] Biostrings_2.18.2   DBI_0.2-5           IRanges_1.10.4
KernSmooth_2.23-7   MASS_7.3-16         RColorBrewer_1.0-5
RSQLite_0.10.0
 [8] SVGAnnotation_0.7-2 XML_3.4-3           affyio_1.18.0
annotate_1.28.0     beadarray_2.0.2     grid_2.14.0
hwriter_1.3
[15] lattice_0.20-0      latticeExtra_0.6-19 limma_3.6.9
marray_1.28.0       stats4_2.14.0       survival_2.36-10
tools_2.14.0
[22] xtable_1.6-0

> R.Version()
$platform
[1] "x86_64-apple-darwin9.8.0"

$arch
[1] "x86_64"

$os
[1] "darwin9.8.0"

$system
[1] "x86_64, darwin9.8.0"

$status
[1] ""

$major
[1] "2"

$minor
[1] "14.0"

$year
[1] "2011"

$month
[1] "10"

$day
[1] "31"

$`svn rev`
[1] "57496"

$language
[1] "R"

$version.string
[1] "R version 2.14.0 (2011-10-31)"

> RStudio.version()
[1] "0.94.84"

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