* using log directory 'd:/Rcompile/CRANpkg/local/3.3/clustree.Rcheck'
* using R version 3.3.3 (2017-03-06)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file 'clustree/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'clustree' version '0.1.1'
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... NOTE
Package suggested but not available for checking: 'SingleCellExperiment'
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'clustree' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking 'build' directory ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking R files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... OK
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd cross-references ... WARNING
Unknown package 'SingleCellExperiment' in Rd xrefs
* checking for missing documentation entries ... ERROR
Warning in library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE,  :
  there is no package called 'SingleCellExperiment'
Error in .requirePackage(package) : 
  unable to find required package 'SingleCellExperiment'
Calls: <Anonymous> ... withCallingHandlers -> is -> getClassDef -> .requirePackage
Execution halted
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking contents of 'data' directory ... OK
* checking data for non-ASCII characters ... NOTE
  Error in .requirePackage(package) : 
    unable to find required package 'SingleCellExperiment'
  Calls: <Anonymous> ... getClass -> getClassDef -> .classEnv -> .requirePackage
  Execution halted
* checking data for ASCII and uncompressed saves ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... [2s] OK
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [9s] ERROR
  Running 'testthat.R' [9s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(clustree)
  Loading required package: ggraph
  Loading required package: ggplot2
  > 
  > test_check("clustree")
  -- 1. Error: SingleCellExperiment interface works (@test-clustree.R#12)  -------
  unable to find required package 'SingleCellExperiment'
  1: expect_is(clustree(sim_sc3, prefix = "sc3_", suffix = "_clusters"), c("gg", "ggplot")) at testthat/test-clustree.R:12
  2: quasi_label(enquo(object), label)
  3: eval_bare(get_expr(quo), get_env(quo))
  4: clustree(sim_sc3, prefix = "sc3_", suffix = "_clusters")
  5: .extendsForS3(structure("SingleCellExperiment", package = "SingleCellExperiment"))
  6: extends(Class, maybe = FALSE)
  7: getClassDef(class1)
  8: .requirePackage(package)
  9: stop(gettextf("unable to find required package %s", sQuote(package)), domain = NA)
  
  == testthat results  ===========================================================
  OK: 31 SKIPPED: 0 FAILED: 1
  1. Error: SingleCellExperiment interface works (@test-clustree.R#12) 
  
  Error: testthat unit tests failed
  Execution halted
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes in 'inst/doc' ... OK
* checking re-building of vignette outputs ... [6s] WARNING
Error in re-building vignettes:
  ...

* checking PDF version of manual ... OK
* DONE
Status: 2 ERRORs, 2 WARNINGs, 2 NOTEs