I want to use FIRMAGene package (http://bioinf.wehi.edu.au/folders/
firmagene/sup3_04feb2010.R) to analysis alternative splice in my data,
but got a problem.

here is my code:

verbose <- Arguments$getVerbose(-30); timestampOn(verbose)
bc <- RmaBackgroundCorrection(cs)

#works well but...
csBC <- process(bc,verbose=verbose)
20100903 09:54:16|Background correcting data set...
Error in list(`process(bc, verbose = verbose)` = <environment>,
`process.RmaBackgroundCorrection(bc, verbose = verbose)` =
<environment>,  :

[2010-09-03 09:54:17] Exception: No write permission for directory:
 at throw(Exception(...))
 at throw.default("No write permission for directory: ", path)
 at throw("No write permission for directory: ", path)
 at getWritablePathname.Arguments(static, file = "dummy-not-created",
path = path, ...)
 at getWritablePathname(static, file = "dummy-not-created", path =
path, ...)
 at method(static, ...)
 at Arguments$getWritablePath(path)
 at bgAdjustRma.AffymetrixCelSet(NA, path = "probeData/tissues,RBC/
HuGene-1_0-st-v1", verbose = TRUE, overwrite = FALSE, subsetToUpdate =
NULL, typesToUpdate = "pm", addJitter
 at bgAdjustRma(NA, path = "probeData/tissues,RBC/HuGene-1_0-st-v1",
verbose = TRUE, overwrite = FALSE, subsetToUpdate = NULL,
typesToUpdate = "pm", addJitter = FALSE, jitterSd
 at do.call("bgAdjustRma", args = args)
 at process.RmaBackgroundCorrection(bc, verbose = verbose)
 at process(bc, verbose = verbose)
20100903 09:54:17|Background correcting data set...done

The folder "probeData/tissues,RBC/HuGene-1_0-st-v1" has been created,
and indeed writable when I created one new txt file as a test. But the
no written permission problem is still there. Any suggestions? Thanks
so much.

When reporting problems on aroma.affymetrix, make sure 1) to run the latest 
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