R language error

1. In the use of R Language goes on WGCNA In the analysis . The following errors are always reported for the original data type （REAL() can only be applied to a 'numeric', not a 'integer'）.

net = blockwiseModules(
     e,
     power = 8,
     TOMType = "unsigned",
     minModuleSize = 30,
     reassignThreshold = 0,
     mergeCutHeight = 0.25,
     numericLabels = TRUE,
     pamRespectsDendro = FALSE,
     saveTOMs = TRUE,
     saveTOMFileBase = "femaleMouseTOM",
     verbose = 3)
 Calculating module eigengenes block-wise from all genes
   Flagging genes and samples with too many missing values...
    ..step 1
 ..Working on block 1 .
Error in blockwiseModules(e, power = 8, TOMType = "unsigned", minModuleSize = 30,  : 
  REAL() can only be applied to a 'numeric', not a 'integer'

2. see e The data type of this file itself

> class(e)
[1] "data.frame"

3. terms of settlement .

e[] <- lapply(e, as.numeric)

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