Error: $ operator is invalid for atomic vectors

[sung]

Hi @stjude,

I've got the following error:
step3. parsing raw counts...Error: $ operator is invalid for atomic vectors

Any clue?

> sessionInfo()
R version 3.6.1 (2019-07-05)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Scientific Linux 7.9 (Nitrogen)

Matrix products: default
BLAS:   /usr/local/software/spack/spack-0.11.2/opt/spack/linux-rhel7-x86_64/gcc-5.4.0/r-3.6.1-zrytncqvsnw5h4dl6t6njefj7otl4bg
4/rlib/R/lib/libRblas.so
LAPACK: /usr/local/software/spack/spack-0.11.2/opt/spack/linux-rhel7-x86_64/gcc-5.4.0/r-3.6.1-zrytncqvsnw5h4dl6t6njefj7otl4bg
4/rlib/R/lib/libRlapack.so

locale:
 [1] LC_CTYPE=en_GB.UTF-8       LC_NUMERIC=C               LC_TIME=en_GB.UTF-8        LC_COLLATE=en_GB.UTF-8
 [5] LC_MONETARY=en_GB.UTF-8    LC_MESSAGES=en_GB.UTF-8    LC_PAPER=en_GB.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C             LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
 [1] ChIPseqSpikeInFree_1.2.4    GenomicAlignments_1.22.1    Rsamtools_2.2.3             Biostrings_2.54.0
 [5] XVector_0.26.0              SummarizedExperiment_1.16.1 DelayedArray_0.12.2         BiocParallel_1.20.1
 [9] matrixStats_0.55.0          Biobase_2.44.0              GenomicRanges_1.38.0        GenomeInfoDb_1.22.0
[13] IRanges_2.20.2              S4Vectors_0.24.3            BiocGenerics_0.32.0         nvimcom_0.9-106
[17] data.table_1.12.8           colorout_1.2-2

loaded via a namespace (and not attached):
[1] zlibbioc_1.32.0        lattice_0.20-38        tools_3.6.1            grid_3.6.1             Matrix_1.2-17
[6] GenomeInfoDbData_1.2.2 bitops_1.0-6           RCurl_1.98-1.1         compiler_3.6.1

[sung]

It turns out that my meta file was NOT TAB delimited, which IT SHOULD BE. That said, it's a bit odd not stopping there - it allows generating the count file.