• using R version 4.2.0 (2022-04-22)
  • using platform: x86_64-apple-darwin17.0 (64-bit)
  • using session charset: UTF-8
  • checking for file ‘rviewgraph/DESCRIPTION’ ... OK
  • checking extension type ... Package
  • this is package ‘rviewgraph’ version ‘1.4.2’
  • package encoding: UTF-8
  • checking package namespace information ... OK
  • checking package dependencies ... OK
  • checking if this is a source package ... OK
  • checking if there is a namespace ... OK
  • checking for executable files ... OK
  • checking for hidden files and directories ... OK
  • checking for portable file names ... OK
  • checking for sufficient/correct file permissions ... OK
  • checking whether package ‘rviewgraph’ can be installed ... [3s/3s] OK
  • checking installed package size ... OK
  • checking package directory ... OK
  • checking ‘build’ directory ... OK
  • checking DESCRIPTION meta-information ... OK
  • checking top-level files ... OK
  • checking for left-over files ... OK
  • checking index information ... OK
  • checking package subdirectories ... OK
  • checking R files for non-ASCII characters ... OK
  • checking R files for syntax errors ... OK
  • checking whether the package can be loaded ... OK
  • checking whether the package can be loaded with stated dependencies ... OK
  • checking whether the package can be unloaded cleanly ... OK
  • checking whether the namespace can be loaded with stated dependencies ... OK
  • checking whether the namespace can be unloaded cleanly ... OK
  • checking loading without being on the library search path ... OK
  • checking dependencies in R code ... OK
  • checking S3 generic/method consistency ... OK
  • checking replacement functions ... OK
  • checking foreign function calls ... OK
  • checking R code for possible problems ... [3s/3s] OK
  • checking Rd files ... [0s/0s] OK
  • checking Rd metadata ... OK
  • checking Rd cross-references ... OK
  • checking for missing documentation entries ... OK
  • checking for code/documentation mismatches ... OK
  • checking Rd \usage sections ... OK
  • checking Rd contents ... OK
  • checking for unstated dependencies in examples ... OK
  • checking sizes of PDF files under ‘inst/doc’ ... OK
  • checking installed files from ‘inst/doc’ ... OK
  • checking files in ‘vignettes’ ... OK
  • checking examples ... [1s/1s] ERROR
    Running examples in ‘rviewgraph-Ex.R’ failed
    The error most likely occurred in:

    > ### Name: vg
    > ### Title: Animated graph viewer
    > ### Aliases: vg vg.list vg.NULL vg.default
    > ### Keywords: animation edges graph vertices
    >
    > ### ** Examples
    >
    >
    > # Start the viewer.
    > # This will print a warning message if not run interactively.
    > require(rviewgraph)
    > v = vg()
    [1] "Running without a visible GUI."
    Error in init() :
      java.lang.UnsupportedClassVersionError: rviewgraph/Rvg has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    Calls: vg -> vg.NULL -> vg.list -> vgCore -> init -> .jnew
    Execution halted
  • checking for unstated dependencies in vignettes ... OK
  • checking package vignettes in ‘inst/doc’ ... OK
  • checking running R code from vignettes ... [1s/1s] NONE
      ‘graphsamplerhtml.Rmd’ using ‘UTF-8’... [0s/0s] OK
      ‘graphsamplerpdf.Rmd’ using ‘UTF-8’... [0s/0s] OK
  • checking re-building of vignette outputs ... [2s/2s] ERROR
    Error(s) in re-building vignettes:
      ...
    --- re-building ‘graphsamplerhtml.Rmd’ using rmarkdown

    Quitting from lines 22-34 [setup] (./chunks/graphsampler.Rmd)

    Quitting from lines 69-78 [unnamed-chunk-2] (./chunks/graphsampler.Rmd)
    Error: processing vignette 'graphsamplerhtml.Rmd' failed with diagnostics:
    java.lang.UnsupportedClassVersionError: rviewgraph/Rvg has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    --- failed re-building ‘graphsamplerhtml.Rmd’

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

    Quitting from lines 22-34 [setup] (./chunks/graphsampler.Rmd)

    Quitting from lines 69-78 [unnamed-chunk-2] (./chunks/graphsampler.Rmd)
    Error: processing vignette 'graphsamplerpdf.Rmd' failed with diagnostics:
    java.lang.UnsupportedClassVersionError: rviewgraph/Rvg has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    --- failed re-building ‘graphsamplerpdf.Rmd’

    SUMMARY: processing the following files failed:
      ‘graphsamplerhtml.Rmd’ ‘graphsamplerpdf.Rmd’

    Error: Vignette re-building failed.
    Execution halted
  • checking PDF version of manual ... OK
  • DONE
    Status: 2 ERRORs
  • using check arguments '--no-clean-on-error '