Hi I am writing a package in which I define a new class in the .onLoad() hook:
,---- | .onLoad <- function(libname, pkgname) { | setClass( | "inDrak", | representation( | init = "SpatialGridDataFrame" | ), | contains = "simObj" | ) | } `---- The class "simObj" is defined in the package, which is in the depends section in the DESCRIPTION file: ,---- | Package: InDrak | Type: Package | Title: Alien spread management simulation model for the Drakensberg | Version: 0.1-0 | Date: 2013-10-03_11-55 | Author: Rainer M. Krug | Maintainer: Rainer M Krug <rai...@krugs.de> | Description: Simulate the spread of three Invasive Alien Plants under different | management and budget scenarios | License: GPL-3 | LazyLoad: yes | Depends: | RSQLite, | simecol | Imports: | methods, | sp, | spgrass6, | DBI, | logger, | fireSim, | seedProd, | seedGerm, | seedDisp | LinkingTo: Rcpp | Collate: | 'beginYear.R' | 'clearAliens.R' | 'competition.R' | 'cumulativeDc.R' | 'dcToIndLayer.R' | 'dispProb2D.R' | 'endYear.R' | 'fireAliens.R' | 'germEst.R' | 'initfunc.R' | 'layerIO.R' | 'layerNames.R' | 'main.R' | 'newInDrak.R' | 'onLoad.R' | 'package.R' | 'parameter.R' | 'parmsAcacia.R' | 'parmsBudget.R' | 'parmsFire.R' | 'parmsPinus.R' | 'parmsRubus.R' | 'resetOptions.R' | 'seedDispersal.R' | 'seedProduction.R' | 'stats.R' `---- If important, the NAMESPACE file is here: ,---- | export(depRateName) | export(exportRaster) | export(fireLayerName) | export(ignitionRiskName) | export(importAliens) | export(importClearingHistory) | export(importFireHistory) | export(importIgnitionRisk) | export(importSpecies) | export(importVegetation) | export(layerExists) | export(layerName) | export(newInDrak) | export(parameter) | export(parmsAcacia) | export(parmsBudget) | export(parmsFire) | export(parmsPinus) | export(parmsRubus) | export(resetOptions) | export(statDistName) | export(suitName) | import(DBI) | import(fireSim) | import(logger) | import(methods) | import(seedDisp) | import(seedGerm) | import(seedProd) | import(sp) | import(spgrass6) `---- The package builds fine, it installs without problems and works as expected, but when checking it, I get the following error: ,---- | $ R CMD check ./InDrak_0.1-0.tar.gz | * using log directory ‘/Users/rainerkrug/Documents/Projects/R-Packages/inDrak/InDrak.Rcheck’ | * using R version 3.0.1 (2013-05-16) | * using platform: x86_64-apple-darwin10.8.0 (64-bit) | * using session charset: UTF-8 | * checking for file ‘InDrak/DESCRIPTION’ ... OK | * checking extension type ... Package | * this is package ‘InDrak’ version ‘0.1-0’ | * checking package namespace information ... OK | * checking package dependencies ... OK | * checking if this is a source package ... OK | * checking if there is a namespace ... OK | * checking for executable files ... OK | * checking for hidden files and directories ... OK | * checking for portable file names ... OK | * checking for sufficient/correct file permissions ... OK | * checking whether package ‘InDrak’ can be installed ... OK | * checking installed package size ... OK | * checking package 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 ... WARNING | Error: .onLoad failed in loadNamespace() for ‘InDrak’, details: | call: reconcilePropertiesAndPrototype(name, slots, prototype, superClasses, | error: no definition was found for superclass “simObj” in the specification of class “inDrak” | Execution halted | | A namespace must be able to be loaded with just the base namespace | loaded: otherwise if the namespace gets loaded by a saved object, the | session will be unable to start. | | Probably some imports need to be declared in the NAMESPACE file. | * checking whether the namespace can be unloaded cleanly ... WARNING | Error: .onLoad failed in loadNamespace() for ‘InDrak’, details: | call: reconcilePropertiesAndPrototype(name, slots, prototype, superClasses, | error: no definition was found for superclass “simObj” in the specification of class “inDrak” | Execution halted | * checking loading without being on the library search path ... OK | * checking for unstated 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 ... NOTE | .initfunc: no visible global function definition for | ‘initialSeedProductionAliens’ | .initfunc: no visible global function definition for ‘endYear’ | .main: no visible global function definition for ‘beginYear’ | .main: no visible global function definition for ‘fireAliens’ | .main: no visible global function definition for ‘seedProductionAliens’ | .main: no visible global function definition for ‘seedDispersalAliens’ | .main: no visible global function definition for ‘germEstAliens’ | .main: no visible global function definition for ‘endYear’ | * checking Rd files ... OK | * checking Rd metadata ... OK | * checking Rd cross-references ... OK | * checking for missing documentation entries ... OK | * checking for code/documentation mismatches ... OK | * checking Rd \usage sections ... OK | * checking Rd contents ... OK | * checking for unstated dependencies in examples ... OK | * checking examples ... NONE | * checking PDF version of manual ... OK | | WARNING: There were 2 warnings. | NOTE: There was 1 note. | See | ‘/Users/rainerkrug/Documents/Projects/R-Packages/inDrak/InDrak.Rcheck/00check.log’ | for details. `---- I am sure I am missing something simple here and I really think I overlooked it in the "Writing R extensions"... Thanks, Rainer -- Rainer M. Krug email: RMKrug<at>gmail<dot>com
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