[R] R 3.3.0 Crashing: Error in readRDS(nsInfoFilePath) : unknown input format

Tue May 17 15:18:45 CEST 2016

Dear Dr. Jeff,

Many thanks for your reply. Here is the output of session info.

I uninstalled all versions of R from my PC and stored R files, then
reinstall.

First time, it works smoothly. But crashing once I shut down and reopen...

Details appended below...

Thanks and hope you will be able to help and support ...

Best regards,
Amitava

Error in readRDS(nsInfoFilePath) : unknown input format

R version 3.3.0 (2016-05-03) -- "Supposedly Educational"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

Warning message:
package "methods" in options("defaultPackages") was not found
Error in readRDS(nsInfoFilePath) : unknown input format
During startup - Warning message:
package ‘methods’ in options("defaultPackages") was not found
> sessionInfo
function (package = NULL)
{
    z <- list()
    z$R.version <- R.Version()
    z$platform <- z$R.version$platform
    if (nzchar(.Platform$r_arch))
        z$platform <- paste(z$platform, .Platform$r_arch, sep = "/")
    z$platform <- paste0(z$platform, " (", 8 * .Machine$sizeof.pointer,
        "-bit)")
    z$locale <- Sys.getlocale()
    if (.Platform$OS.type == "windows") {
        z$running <- win.version()
    }
    else if (nzchar(Sys.which("uname"))) {
        uname <- system("uname -a", intern = TRUE)
        os <- sub(" .*", "", uname)
        z$running <- switch(os, Linux = if (file.exists("/etc/os-release"))
{
            tmp <- readLines("/etc/os-release")
            t2 <- if (any(startsWith(tmp, "PRETTY_NAME=")))
sub("^PRETTY_NAME=",
                "", grep("^PRETTY_NAME=", tmp, value = TRUE)[1L]) else if
(any(startsWith(tmp,
                "NAME"))) sub("^NAME=", "", grep("^NAME=", tmp,
                value = TRUE)[1L]) else "Linux (unknown distro)"
            sub("\"(.*)\"", "\\1", t2)
        } else if (file.exists("/etc/system-release")) {
            readLines("/etc/system-release")
        }, Darwin = {
            ver <-
readLines("/System/Library/CoreServices/SystemVersion.plist")
            ind <- grep("ProductUserVisibleVersion", ver)
            ver <- ver[ind + 1L]
            ver <- sub(".*<string>", "", ver)
            ver <- sub("</string>$", "", ver)
            ver1 <- strsplit(ver, ".", fixed = TRUE)[[1L]][2L]
            sprintf("OS X %s (%s)", ver, switch(ver1, `4` = "Tiger",
                `5` = "Leopard", `6` = "Snow Leopard", `7` = "Lion",
                `8` = "Mountain Lion", `9` = "Mavericks", `10` =
"Yosemite",
                `11` = "El Capitan", "unknown"))
        }, SunOS = {
            ver <- system("uname -r", intern = TRUE)
            paste("Solaris", strsplit(ver, ".", fixed = TRUE)[[1L]][2L])
        }, uname)
    }
    if (is.null(package)) {
        package <- grep("^package:", search(), value = TRUE)
        keep <- vapply(package, function(x) x == "package:base" ||
            !is.null(attr(as.environment(x), "path")), NA)
        package <- .rmpkg(package[keep])
    }
    pkgDesc <- lapply(package, packageDescription, encoding = NA)
    if (length(package) == 0)
        stop("no valid packages were specified")
    basePkgs <- sapply(pkgDesc, function(x) !is.null(x$Priority) &&
        x$Priority == "base")
    z$basePkgs <- package[basePkgs]
    if (any(!basePkgs)) {
        z$otherPkgs <- pkgDesc[!basePkgs]
        names(z$otherPkgs) <- package[!basePkgs]
    }
    loadedOnly <- loadedNamespaces()
    loadedOnly <- loadedOnly[!(loadedOnly %in% package)]
    if (length(loadedOnly)) {
        names(loadedOnly) <- loadedOnly
        pkgDesc <- c(pkgDesc, lapply(loadedOnly, packageDescription))
        z$loadedOnly <- pkgDesc[loadedOnly]
    }
    class(z) <- "sessionInfo"
    z
}
<bytecode: 0x0000000008a8a8c0>
<environment: namespace:utils>
>

On 16 May 2016 at 21:08, Jeff Newmiller <jdnewmil at dcn.davis.ca.us> wrote:

> I don't know why this is happening, but the nsInfo.rds file is part of
> every installed package (see Section 4.1 of the R Internals documentation)
> and it sounds like one or more of them are getting corrupted. This could be
> because you or your .Rprofile or an .RData file are triggering a bug in one
> of your packages.
>
> You might try
> * posting the output of the sessionInfo function,
> * looking in your .Rprofile file with a text editor,
> * deleting/renaming any RData files in your working directory, and perhaps
> * clearing/renaming your personal 3.3 package library and re-installing
> one package at a time to see which one triggers the error.
> --
> Sent from my phone. Please excuse my brevity.
>
> On May 13, 2016 11:53:05 PM PDT, Amitava Mukherjee <amitmukh2 at gmail.com>
> wrote:
>
>> Dear All,
>>
>> Greetings. I hope you will be able to provide kind help with the following:
>>
>> I am facing a strange problem ever since I have started working with R
>> 3.3.0.
>>
>> I download and work with it, it was fine. Then when I shut down and reopen,
>> it is not working properly.
>>
>> I am getting following message:
>>
>> Error in readRDS(nsInfoFilePath) : unknown input format
>>
>> R version 3.3.0 (2016-05-03) -- "Supposedly Educational"
>> Copyright (C) 2016 The R Foundation for Statistical Computing
>> Platform: x86_64-w64-mingw32/x64 (64-bit)
>>
>> R is free software and comes with ABSOLUTELY NO WARRANTY.
>> You are welcome to redistribute it under certain conditions.
>> Type 'license()' or 'licence()' for distribution details.
>>
>>   Natural language support but running in an English locale
>>
>> R is a collaborative project with many contributors.
>> Type 'contributors()' for more
>> information and
>> 'citation()' on how to cite R or R packages in publications.
>>
>> Type 'demo()' for some demos, 'help()' for on-line help, or
>> 'help.start()' for an HTML browser interface to help.
>> Type 'q()' to quit R.
>>
>> Warning message:
>> package "methods" in options("defaultPackages") was not found
>> [Previously saved workspace restored]
>>
>> Error in readRDS(nsInfoFilePath) : unknown input format
>> During startup - Warning message:
>> package ‘methods’ in options("defaultPackages") was not found
>>
>>>  ?mean
>>>
>> Error in readRDS(nsInfoFilePath) : unknown input format
>>
>>>
>>>
>>
>> I have uninstall it three times and reinstall -- Every time after first
>> installation it is working perfectly.
>>
>> Then when I am closing R window and reopening it, the problem starts.
>>
>> Kindly suggest what should I do. Looking forward to hear from you,
>>
>> Best regards,
>> Amitava
>>
>>
>>
>>
>>
>> Dr. Amitava Mukherjee, Ph.D.
>> Associate Professor,
>> Production, Operations and Decision Sciences Area,
>> XLRI-Xavier School of Management, India.
>>
>>  [[alternative HTML version deleted]]
>>
>> ------------------------------
>>
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>

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