Error(s) in re-building vignettes:
--- re-building ‘clere.Rnw’ using Sweave
Loading required package: parallel
Loading required package: lasso2
R Package to solve regression problems while imposing
	 an L1 constraint on the parameters. Based on S-plus Release 2.1
Copyright (C) 1998, 1999
Justin Lokhorst   <jlokhors@stats.adelaide.edu.au>
Berwin A. Turlach <bturlach@stats.adelaide.edu.au>
Bill Venables     <wvenable@stats.adelaide.edu.au>

Copyright (C) 2002
Martin Maechler <maechler@stat.math.ethz.ch>
 ----------- FAILURE REPORT -------------- 
 --- failure: the condition has length > 1 ---
 --- srcref --- 
: 
 --- package (from environment) --- 
clere
 --- call from context --- 
.local(object, ...)
 --- call from argument --- 
if (class(newx) == "matrix") {
    if (ncol(newx) == object@p) {
        return(object@intercept + rowMeans(newx %*% object@Bw, 
            na.rm = TRUE))
    }
    else {
        stop(paste0("[Clere:predict] \"newx\" must be a matrix with ", 
            object@p, " columns"), call. = FALSE)
    }
} else {
    stop("[Clere:predict] \"newx\" is not a matrix", call. = FALSE)
}
 --- R stacktrace ---
where 1: .local(object, ...)
where 2: predict(mod, xv)
where 3: predict(mod, xv)
where 4: mean((yv - predict(mod, xv))^2)
where 5: eval(expr, .GlobalEnv)
where 6: eval(expr, .GlobalEnv)
where 7: withVisible(eval(expr, .GlobalEnv))
where 8: doTryCatch(return(expr), name, parentenv, handler)
where 9: tryCatchOne(expr, names, parentenv, handlers[[1L]])
where 10: tryCatchList(expr, classes, parentenv, handlers)
where 11: tryCatch(expr, error = function(e) {
    call <- conditionCall(e)
    if (!is.null(call)) {
        if (identical(call[[1L]], quote(doTryCatch))) 
            call <- sys.call(-4L)
        dcall <- deparse(call)[1L]
        prefix <- paste("Error in", dcall, ": ")
        LONG <- 75L
        sm <- strsplit(conditionMessage(e), "\n")[[1L]]
        w <- 14L + nchar(dcall, type = "w") + nchar(sm[1L], type = "w")
        if (is.na(w)) 
            w <- 14L + nchar(dcall, type = "b") + nchar(sm[1L], 
                type = "b")
        if (w > LONG) 
            prefix <- paste0(prefix, "\n  ")
    }
    else prefix <- "Error : "
    msg <- paste0(prefix, conditionMessage(e), "\n")
    .Internal(seterrmessage(msg[1L]))
    if (!silent && isTRUE(getOption("show.error.messages"))) {
        cat(msg, file = outFile)
        .Internal(printDeferredWarnings())
    }
    invisible(structure(msg, class = "try-error", condition = e))
})
where 12: try(withVisible(eval(expr, .GlobalEnv)), silent = TRUE)
where 13: evalFunc(ce, options)
where 14: tryCatchList(expr, classes, parentenv, handlers)
where 15: tryCatch(evalFunc(ce, options), finally = {
    cat("\n")
    sink()
})
where 16: driver$runcode(drobj, chunk, chunkopts)
where 17: utils::Sweave(...)
where 18: engine$weave(file, quiet = quiet, encoding = enc)
where 19: doTryCatch(return(expr), name, parentenv, handler)
where 20: tryCatchOne(expr, names, parentenv, handlers[[1L]])
where 21: tryCatchList(expr, classes, parentenv, handlers)
where 22: tryCatch({
    engine$weave(file, quiet = quiet, encoding = enc)
    setwd(startdir)
    output <- find_vignette_product(name, by = "weave", engine = engine)
    if (!have.makefile && vignette_is_tex(output)) {
        texi2pdf(file = output, clean = FALSE, quiet = quiet)
        output <- find_vignette_product(name, by = "texi2pdf", 
            engine = engine)
    }
    outputs <- c(outputs, output)
}, error = function(e) {
    thisOK <<- FALSE
    fails <<- c(fails, file)
    message(gettextf("Error: processing vignette '%s' failed with diagnostics:\n%s", 
        file, conditionMessage(e)))
})
where 23: tools:::buildVignettes(dir = "/data/gannet/ripley/R/packages/tests-devel/clere.Rcheck/vign_test/clere", 
    ser_elibs = "/tmp/RtmpaAMYvM/file43bd6e4f25fb.rds")

 --- value of length: 2 type: logical ---
[1]  TRUE FALSE
 --- function from context --- 
function (object, newx, ...) 
{
    if (class(newx) == "matrix") {
        if (ncol(newx) == object@p) {
            return(object@intercept + rowMeans(newx %*% object@Bw, 
                na.rm = TRUE))
        }
        else {
            stop(paste0("[Clere:predict] \"newx\" must be a matrix with ", 
                object@p, " columns"), call. = FALSE)
        }
    }
    else {
        stop("[Clere:predict] \"newx\" is not a matrix", call. = FALSE)
    }
}
<environment: namespace:clere>
 --- function search by body ---
 ----------- END OF FAILURE REPORT -------------- 

Error: processing vignette 'clere.Rnw' failed with diagnostics:
 chunk 9 
Error in if (class(newx) == "matrix") { : the condition has length > 1

--- failed re-building ‘clere.Rnw’

SUMMARY: processing the following file failed:
  ‘clere.Rnw’

Error: Vignette re-building failed.
Execution halted