Christiaan,

This is the error message:

Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl,  :
 java.lang.InternalError: Can't start the AWT because Java was
started on the first thread.  Make sure StartOnFirstThread is not
specified in your application's Info.plist or on the command line

It is probably not related to your version of R as this is common problem
when using the some java programs (and the rJava package) on a Mac. The
only way to avoid it that I am aware of is to  run the function from the
JGR interface (a Java based R GUI). You can download JGR here:
http://www.rforge.net/JGR/

Robert

On Sun, Mar 11, 2012 at 12:03 PM, christiaan pauw <cjpauw@gmail.com> wrote:

> Hi Everbody
>
> I read this blog about the new OpenStreetMap package
> (http://www.r-bloggers.com/plot-maps-like-a-boss/), downloaded the
> package and tried out the example.
>
> The first example is:
>
> library(OpenStreetMap)
> library(rgdal)
> map <- openmap(c(70,-179), c(-70,179))
> plot(map)
>
> It looked simple enough. However, this resulted in an error which
> appears to be related to the fact that my R version is 2.14.0 and the
> package ‘OpenStreetMap’ was built under R version 2.14.1  (see below
> together with sessionInfo())
>
> Is this correct or is it perhaps something else.
>
> regards
> Christiaan
>
> > library(OpenStreetMap)
> Loading required package: rJava
> Loading required package: sp
> Loading required package: maptools
> Loading required package: foreign
> Loading required package: lattice
> Checking rgeos availability: FALSE
>        Note: when rgeos is not available, polygon geometry
> computations in
> maptools depend on gpclib,
>        which has a restricted licence. It is disabled by default;
>        to enable gpclib, type gpclibPermit()
> Loading required package: raster
> raster version 1.9-70 (27-February-2012)
> Warning messages:
> 1: package ‘OpenStreetMap’ was built under R version 2.14.1
> 2: package ‘raster’ was built under R version 2.14.1
> > library(rgdal)
> Geospatial Data Abstraction Library extensions to R successfully loaded
> Loaded GDAL runtime: GDAL 1.8.1, released 2011/07/09
> Path to GDAL shared files:
> /Users/christiaanpauw/Library/R/2.14/library/rgdal/gdal
> Loaded PROJ.4 runtime: Rel. 4.7.1, 23 September 2009, [PJ_VERSION: 470]
> Path to PROJ.4 shared files:
> /Users/christiaanpauw/Library/R/2.14/library/rgdal/proj
> > map <- openmap(c(70,-179), c(-70,179))
> Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl,  :
>  java.lang.InternalError: Can't start the AWT because Java was
> started on the first thread.  Make sure StartOnFirstThread is not
> specified in your application's Info.plist or on the command line
> > plot(map)
> Error in plot.window(...) : need finite 'xlim' values
> In addition: Warning messages:
> 1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion
> 2: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion
> 3: In min(x) : no non-missing arguments to min; returning Inf
> 4: In max(x) : no non-missing arguments to max; returning -Inf
> 5: In min(x) : no non-missing arguments to min; returning Inf
> 6: In max(x) : no non-missing arguments to max; returning -Inf
>
> Sessio Info below:
>
> > sessionInfo()
> R version 2.14.0 (2011-10-31)
> Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
>
> locale:
> [1] en_US/en_US/en_US/C/en_US/en_US
>
> attached base packages:
> [1] grid      splines   stats     graphics  grDevices utils
> datasets  methods   base
>
> other attached packages:
>  [1] rgdal_0.7-5       maps_2.2-2        OpenStreetMap_0.2
> raster_1.9-70     maptools_0.8-10
>  [6] foreign_0.8-46    rJava_0.9-2       portfolio_0.4-5
> nlme_3.1-102      Hmisc_3.9-0
> [11] ggplot2_0.8.9     proto_0.3-9.2     reshape_0.8.4     plyr_1.6
>      reporttools_1.0.6
> [16] xtable_1.6-0      doBy_4.4.3        MASS_7.3-16       snow_0.3-8
>      lme4_0.999375-42
> [21] Matrix_1.0-1      lattice_0.20-0    multcomp_1.2-8
> mvtnorm_0.9-9991  R2HTML_2.2
> [26] survival_2.36-10  descr_0.4.2       TeachingDemos_2.7
> prettyR_2.0-1     sp_0.9-93
>
> loaded via a namespace (and not attached):
> [1] cluster_1.14.1 digest_0.5.1   stats4_2.14.0  tools_2.14.0
>
> --
> Christiaan Pauw
> Nova Institute
> www.nova.org.za
>
> _______________________________________________
> R-sig-Geo mailing list
> R-sig-Geo@r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>

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