############################################################################## ############################################################################## ### ### Running command: ### ### F:\biocbuild\bbs-3.20-bioc\R\bin\R.exe CMD INSTALL ontoProc ### ############################################################################## ############################################################################## * installing to library 'F:/biocbuild/bbs-3.20-bioc/R/library' * installing *source* package 'ontoProc' ... ** using staged installation ** R ** data ** inst ** byte-compile and prepare package for lazy loading ** help *** installing help indices ** building package indices ** installing vignettes ** testing if installed package can be loaded from temporary location Error : Installation of Python not found, Python bindings not loaded. Please create a default virtual environment with `reticulate::virtualenv_create('r-reticulate')`. Error: package or namespace load failed for 'ontoProc': .onLoad failed in loadNamespace() for 'ontoProc', details: call: stop_no_virtualenv_starter(version = version, python = python) error: Suitable Python installation for creating a venv not found. Please install Python with one of following methods: - https://www.python.org/downloads/ - reticulate::install_python(version = '') Error: loading failed Execution halted ERROR: loading failed * removing 'F:/biocbuild/bbs-3.20-bioc/R/library/ontoProc'