Running examples in ‘hdf5r.Extra-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: H5-attributs
> ### Title: Manipulate HDF5 attributes
> ### Aliases: H5-attributs h5Attr h5Attributes h5AttrNames h5DeleteAttr
> ###   h5WriteAttr h5Attr.H5D h5Attr.H5Group h5Attr.H5File h5Attr.character
> ###   h5AttrNames.H5D h5AttrNames.H5Group h5AttrNames.H5File
> ###   h5AttrNames.character h5Attributes.H5D h5Attributes.H5Group
> ###   h5Attributes.H5File h5Attributes.character h5WriteAttr.H5D
> ###   h5WriteAttr.H5Group h5WriteAttr.H5File h5WriteAttr.character
> ###   h5DeleteAttr.H5D h5DeleteAttr.H5Group h5DeleteAttr.H5File
> ###   h5DeleteAttr.character
> 
> ### ** Examples
> 
> file <- system.file("extdata", "pbmc_small.h5ad", package = "hdf5r.Extra")
> 
> # Read H5 attribute
> x <- h5Attr(file, "encoding-version")
> x <- h5Attr(file, "column-order", "raw/var") ## An empty attribute
> stopifnot(is.null(x))
> 
> h5obj <- h5Open(file, "raw/var")
Open file '/home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/hdf5r.Extra/extdata/pbmc_small.h5ad' failed: 

Error in H5File.open(filename, mode, file_create_pl, file_access_pl) : 
  HDF5-API Errors:
    error #000: ../../../src/H5F.c in H5Fopen(): line 412: unable to open file
        class: HDF5
        major: File accessibility
        minor: Unable to open file

    error #001: ../../../src/H5Fint.c in H5F_open(): line 1655: unable to open file: time = Thu Sep 21 11:46:04 2023
, name = '/home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/hdf5r.Extra/extdata/pbmc_small.h5ad', tent_flags = 1
        class: HDF5
        major: File accessibility
        minor: Unable to open file

    error #002: ../../../src/H5FD.c in H5FD_open(): line 722: open failed
        class: HDF5
        major: Virtual File Layer
        minor: Unable to initialize object

    error #003: ../../../src/H5FDsec2.c in H5FD__sec2_open(): line 351: unable to open file: name = '/home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/hdf5r.Extra/extdata/pbmc_small.h5ad', errno = 30, error message = 'Read-only file system', flag        class: HDF5
        major: File accessibi
Calls: h5Open ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted