In:= w = WordData[];
During eval of In:= ReplaceAll::reps: {Expression/. Null} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.[>>][1]
During eval of In:= LinkOpen::linke: Specified file is not a MathLink executable..[>>][2]
In:= WordData["Day", "Definitions"] Out:= WordData["Day", "Definitions"]
(*last seems unevaluated...*)
In:= Here Out:= Missing[NotAvailable]


I am simply calling this function to use it but its not working.

  • I am connected to the internet and I am able to call WolframAlpha["query"] sucessfully...
  • Any idea that do not include acrobatics with the Mathematica File System is more than welcome...
  • I already check my firewall settings ...

Here is another one:

In:=  CountryData[]
Out:=  DataPaclets`CountryDataDump`$GroupHash["Countries"]
  • Any ideas...?

System Info:

~$uname -a
Linux ***** 3.16.1-1-ARCH #1 SMP PREEMPT Thu Aug 14 07:40:19 CEST 2014 x86_64 GNU/Linux

Network information:

In[2]:= SystemInformation["Network"] //Column                                   

Out[2]:= IPAddresses -> {fe80::****:274c:a7c7:***,}
        AllowInternetUse -> True
        LoadOnDemand -> True
        LoadOnDemandServers -> {http://pacletserver.wolfram.com}
        LatestTransaction -> Missing[NotActive]
        LatestTransactionServer -> Missing[NotActive]
        LastLocalIndexUpdate -> {2014, 8, 28, 19, 11, 30.766294}
        LastLocalIndexUpdateServer -> {}
        Paclets -> PacletManager Version 2.2.0
        TotalDownloads -> Missing[NotActive]
        DownloadsDirectory -> Missing[NotActive]

Mathematica Kernel Information:

In[3]:= SystemInformation["Kernel"] //Column                                    

Out[3]:= Version -> 10.0 for Linux x86 (64-bit) (June 29, 2014)
        ReleaseID -> (5098646, 5098517)
        LicenseID -> *****-****
        PatchLevel -> 0
        ActivationKey -> ****-9190-****
        ActivationGroupID -> *****-****
        MachineID -> 6539-*****-01360
        UserName -> *****
        MachineName -> ****
        MachineDomains -> {sd.cox.net}
        LicenseServer -> gabriel
        MaxLicenseProcesses -> Infinity
        LicenseExpirationDate -> {Infinity, 0, 0, 0, 0, 0}
        MachineType -> PC
        OperatingSystem -> Unix
        ProcessorType -> x86-64
        Language -> English
        CharacterEncoding -> UTF-8
        SystemCharacterEncoding -> UTF-8
        TimeZone -> -7.
        CreationDate -> DateObject[{2014, 6, 29}, TimeObject[{19, 7, 59}]]
        InstallationDirectory -> /usr/local/Wolfram/Mathematica/10.0
        WSTPVersion -> 4.25 (2014062701)
        ProcessorCount -> 2
        LicenseSubprocesses -> 1
        MaxLicenseSubprocesses -> Infinity

I also tried Trace and TracePrint on the WordData[] function call. Nothing clear so far ...

This is a link to the output of:

System`Dump`AutoLoad[Hold[CountryData], Hold[CountryData], "DataPaclets`CountryData`"] // TracePrint

Wolfram Documentation:

ReplaceAll::reps error docs.

LinkOpen::linke error docs.

  • $\begingroup$ Please include the details of your system, e.g. Mathematica version, platform, etc. $\endgroup$ – Mr.Wizard Aug 29 '14 at 2:19
  • 1
    $\begingroup$ Possibly related: (29216), (39110). No solutions there, unfortunately. $\endgroup$ – Mr.Wizard Aug 29 '14 at 2:23
  • $\begingroup$ Thank you @Mr.Wizard I will take a closer look to this issue later on... I will post here the response from wolfram support... thanks... $\endgroup$ – Schopenhauer Aug 29 '14 at 3:54

I can't Trace the WordData problem because I don't have that error on my system. Howvever after loading CountryData[] you should have this behavior:

DataPaclets`CountryDataDump`$GroupHash["Countries"] // Short
{Afghanistan, Albania, Algeria, AmericanSamoa, << 233 >>, Yemen, Zambia, Zimbabwe}

That you do not indicates that this definition was never properly loaded.

The definition of CountryData on my system, before using CountryData[]:

CountryData := 
 System`Dump`AutoLoad[Hold[CountryData], Hold[CountryData], "DataPaclets`CountryData`"] /;

You should first check to see that System`Dump`TestLoad returns True:


Next, please check and report the output of this:

mx = System`Private`$SystemFileDir <> System`Dump`fixfile["DataPaclets`CountryData`"] <> "x"


On my machine:

"C:\\Program Files\\Wolfram \

  • $\begingroup$ @Schopenhauer Okay, next check added to my "answer." $\endgroup$ – Mr.Wizard Aug 29 '14 at 4:35
  • $\begingroup$ I guess there is no other way but to dive into the file system ... no luck still Out:= /usr/local/Wolfram/Mathematica/10.0/SystemFiles/Kernel/SystemResources/Linux-x86-64/DataPaclets/CountryData.mx In:=FileByteCount[mx] Out:= 10626 << "/usr/local/Wolfram/Mathematica/10.0/SystemFiles/Kernel/\ SystemResources/Linux-x86-64/DataPaclets/CountryData.mx" In:= CountryData[] Out:= DataPaclets`CountryDataDump`$GroupHash["Countries"] $\endgroup$ – Schopenhauer Aug 29 '14 at 6:43
  • 1
    $\begingroup$ @Schopenhauer Please include the full output of System`Dump`AutoLoad[Hold[CountryData], Hold[CountryData], "DataPaclets`CountryData`"] // TracePrint in your Question. (Run the command in a fresh kernel.) $\endgroup$ – Mr.Wizard Aug 29 '14 at 8:11
  • $\begingroup$ Here is the output of: System`Dump`AutoLoad[Hold[CountryData], Hold[CountryData], "DataPaclets`CountryData`"] // TracePrint $\endgroup$ – Schopenhauer Aug 29 '14 at 18:59

Solution (This solution worked for my particular case.)

Install Mathematica 9 alongside with Mathematica 10 then reinstall Mathematica 10

  • I have no idea why it worked. I do not have enough time now to find out. I will appreciate any comments for a further research of an answer...

  • If you use Arch Linux install tree with:

    $ sudo pacman -S tree
    The purpose of this is to see clearly the structure of your installation directory.

  • This the output of the tree program after cd into the $InstallationDirectory

    $ tree -af </code></pre> Oops... the output of the `tree` program on the `$InstallationDirectoryis about <em>60,000 lines...</em> In simple terms I installed both versions of Mathematica and the issue with theIn1:= WordData[ ]` call was gone.

  • Mathematica 10 lives now on /usr/local/Wolfram/Mathematica/10.0/ and Mathematica 9 on /usr/local/Wolfram/Mathematica/9.0/ ...

  • Here is a screenshot of a happy ending... enter image description here


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