I'm facing problem in installing flowClust package which is hampering the loading of openCyto.

It is showing the error as 

Installing package(s) ‘flowClust’
Package which is only available in source form, and may need compilation of C/C++/Fortran:
  ‘flowClust’
  These will not be installed
installation path not writeable, unable to update packages: foreign, Matrix.

Can u please help me in rectifying this and install flowClust!

> source("https://bioconductor.org/biocLite.R")
Bioconductor version 3.5 (BiocInstaller 1.26.0), ?biocLite for help
> biocLite("flowClust")
BioC_mirror: https://bioconductor.org
Using Bioconductor 3.5 (BiocInstaller 1.26.0), R 3.4.0 (2017-04-21).
Installing package(s) ‘flowClust’
Package which is only available in source form, and may need compilation of
  C/C++/Fortran: ‘flowClust’
  These will not be installed

> sessionInfo()
R version 3.4.0 (2017-04-21)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

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

other attached packages:
[1] BiocInstaller_1.26.0 Rcpp_0.12.11        

loaded via a namespace (and not attached):
[1] compiler_3.4.0 tools_3.4.0 

This sounds similar to this support site question: Installation of samr package on R v3.4 mac OS Sierra  .  It might be that you are missing some system dependency or the fortran or C compilers in order to install the package correctly.

Also it appears that the `flowClust` package has not build correctly on Bioconductor 3.5 so the maintainer might have to make some changes before it will become available.