Failed to load c bson extension

Question

A total node noob here  I ve been trying to set up a sample node app but the following error keeps popping up every time I try to run      node app   Failed to load c   bson extension  using pure JS version  events js 72         throw er     Unhandled  error  event                 Error  failed to connect to     67890  27017      at null  lt anonymous gt    home thejazeto code nodejs authen node modules mongoose node modules mongodb lib mongodb connection server js 553 74      at EventEmitter emit  events js 106 17      at null  lt anonymous gt    home thejazeto code nodejs authen node modules mongoose node modules mongodb lib mongodb connection connection pool js 140 15      at EventEmitter emit  events js 98 17      at Socket  lt anonymous gt    home thejazeto code nodejs authen node modules mongoose node modules mongodb lib mongodb connection connection js 512 10      at Socket EventEmitter emit  events js 95 17      at net js 830 16     at process  tickCallback  node js 415 13

User · Answer

I had this problem because I was including the node modules folder in my Git repository  When I rebuilt the node modules on the other system it worked  One of them was running Linux  the other OS X  Maybe they had different processor architectures as well

User · Answer

Followint  user1548357 I decided to change the module file itself  So as to avoid the problems pointed out by the valid comments below I included my changes in a postinstall script so that I can set it and forget it and be assured that it will run when my modules are installed      package json  scripts            other scripts      postinstall    node   bson fix js       and the script is      bson fix js var fs   require  fs    var file      node modules bson ext index js  fs readFile file   utf8   function  err data      if  err        return console log err         var result   data replace        build  Release  bson g   bson      fs writeFile file  result   utf8   function  err         if  err  return console log err        console log  Fixed bson module so as to use JS version

User · Answer

I just ran   sudo npm install bson   and  sudo npm update   and all become ok

User · Answer

I finally corrected this error by updating my mongodb dependency version to  2 0 36 in package json     dependencies          consolidate     0 9 1        express    3 x        mongodb     2 0 36        mongoose     4 1 12

User · Answer

If the bson extension wasn t the reason  I guessed the other reason for  failed to connect  would be the user id s  So I created a new database and added a user for the database  with a password for that user  note  not mongolab account password   I updated those on my code and voila  It worked  Duh right   D

User · Answer

I was unable to solve this  until now  First of all you have to have system packages mentioned by Pradeep Mahdevu  Those are   xcode-select --install  on a mac     or   sudo apt-get install gcc make build-essential  on ubuntu    Then I ve installed node-gyp  npm install -g node-gyp    like datadracer said but npm update also suggested by him is risky  It update all modules  which can be dangerous  sometimes API changes between versions     I suggest going into node modules mongodb node modules bson directory and from there use   node-gyp rebuild   That solved the problem for me

User · Answer

I also encountered the same problem and I m a Mac OSX user  Basically  you need to make sure you have installed the Xcode and also the  Command Line Tools  within the Xcode    Xcode is free and can be downloaded over here  https   developer apple com xcode downloads   After you have installed the Xcode  open it and click  Preference  in the pull down menu  and click the  Downloads  icon  Make sure you have the  Command Line Tools  installed   Then run the following commands like all the other users mentioned above   rm -rf node modules npm cache clean npm install

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On ubuntu 14 04 I needed to create a link in  usr bin because  usr bin env was looking for  usr bin node   ln -s  usr bin nodejs  usr bin node   The error messages can be found in the builderror log in each directory so for the message      bson 0 2 21 install  usr local lib node modules mongodb node modules mongodb-core node modules bson    node-gyp rebuild 2  builderror log      exit 0    look at this file for more information about the exact problem    usr local lib node modules mongodb node modules mongodb-core node modules bson builderror log

User · Answer

I fixed this problem on CentOS by   sudo yum groupinstall  Development Tools  sudo npm install -g node-gyp rm -r node modules npm cache clean npm install

User · Answer

Unfortunately  All the above answers are only half right   Took a long time to figure this out    Mongoose bson install via npm throws warning and causes the error     npm install -g node-gyp  git clone https   github com mongodb js-bson git cd js-bson npm install node-gyp rebuild   This works like magic

User · Answer

I was trying to run node on virtual machine  vagrant  shared folder  That was a problem  My host machine is Windows  installed node on Windows and worked like a charm  So if you are using virtual machine  just try to run node server on host machine

User · Answer

The only thing which helps me on Windows 7  x64   https   stackoverflow com a 29714359 2670121  Reinstall node and python with x32 versions  I spent a lot of time with this error      Failed to load c   bson extension   and finally  when I installed module node-gyp  for building native addons  and even installed windows SDK with visual studio - nodejs didn t recognize assembled module bson node as a module  After reinstalling the problem is gone   Again  What does this error mean   Actually  it s even not error  You still can use mongoose  But in this case  instead of fast native realization of bson module  you got js-realization  which is slower   I saw many tips like   edit path deep inside node modules     - which is totally useless  because it does not solve the problem  but just turned off the error messages

User · Answer

just wanted to say I also had the error   Failed to load c   bson extension  using pure JS version   But with none of the other errors  I tried everything and turns out the mongodb drivers that I was specifying in the package json file was incompatible with my version of MongoDB  I changed it to my latest version which was  1 4 34  and it worked

User · Answer

I had the same problem on my EC2 instance   I think the initial cause was because I had a Node instance running when I installed Mongo   I stopped the Node service and then ran  sudo npm update    inside of the top level folder of my node project   This fixed the problem and everything was just like new

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A common problem is that node-gyp requires Python 2 x and if your system s python points to 3 x  it will fail to compile bson  without warning  You can fix this by setting a python global key in your npm config that points to the 2 x executable on your system  For example  on Arch Linux   npm config -g set python   usr bin python2

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I have sorted the issue of getting the  Failed to load c   bson extension  on raspbian debian for raspberry  by    npm install -g node-gyp   and then   npm update

User · Answer

easily kick out the problem by just add this line both try and catch block path  node modules mongoose node modules mongodb node modules bson ext index js  bson   require  bson     instead   bson   require    win32 ia32 bson    bson   require     build Release bson       That is all

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On WIN 8 1  It seems I used a wrong version of mongoose in my package json file   I removed the line  mongoose      3 8 15  from package json   CLI   npm install mongoose --save   Now it says  mongoose     4 0 6  in package json and the error I had is gone

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I just resolved that   When you install the mongoose module by npm  it does not have a built bson module in it s folder  In the file node modules mongoose node modules mongodb node modules bson ext index js  change the line  bson   require     build Release bson      to  bson   require  bson      and then install the bson module using npm

User · Answer

So in my case  I first tried to check under this directory  node modules mongoose node modules   just to confirm that I have the bson module  I figured out that I did not have it in the first place  then I just run   npm install bson   and then   npm update  All got sorted Tried and tested in Ubuntu

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I just had the same problem and literally nothing worked for me  The error was showing kerberos is causing the problem and it was one of the mongoose dependencies  Since I m on Ubuntu  I thought there might be permission issues somewhere between the globally installed packages -- in  usr lib node modules via sudo  and those which are on the user space   I installed mongoose globally -- with sudo of course  and everything began working as expected   P S  The kerberos package now also is installed globally next to mongoose  however I can t remember if I did it deliberately -- while I was trying to solve the problem  or if it was there from the beginning

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I was able to resolve by uninstalling and reinstalling monk package   Initial install seemingly had a corrupt mongodb bson dependency

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For Windows 7 1  these directions helped me to fix my build environment   https   github com mongodb js-bson issues 58 issuecomment-68217275  http   christiankvalheim com post diagnose installation problems

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I m working on Docker with centOS 7  and encountered the same problem   after looking around  and make several tries  I fixed this problem by installing mongodb  and mongodb-server  yum install mongodb mongodb-server   I don t think this is the best way to produce the minimal container  but I can limit the scope into the following packages                                                                                                                  Package                          Arch              Version                          Repository          Size                                                                                                                 Installing   mongodb                          x86 64            2 6 5-2 el7                      epel                57 M  mongodb-server                   x86 64            2 6 5-2 el7                      epel               8 7 M Installing for dependencies   boost-filesystem                 x86 64            1 53 0-18 el7                    base                66 k  boost-program-options            x86 64            1 53 0-18 el7                    base               154 k  boost-system                     x86 64            1 53 0-18 el7                    base                38 k  boost-thread                     x86 64            1 53 0-18 el7                    base                56 k  gperftools-libs                  x86 64            2 1-1 el7                        epel               267 k  libpcap                          x86 64            14 1 5 3-3 el7 0 1               updates            137 k  libunwind                        x86 64            1 1-3 el7                        epel                61 k  snappy                           x86 64            1 1 0-3 el7                      base                40 k

User · Answer

For my case  I npm install all modules on my local machine  Mac   and I did not include node modules in  gitignore and uploaded to github  Then I cloned the project to my aws  as you know  it is running Linux  so I got the errors  What I did is just include node modules in  gitignore  and use npm install in my aws instance  then it works

User · Answer

I m running Ubuntu 14 04 and to fix it for me I had to create a symlink for node to point to nodejs as described here   nodejs vs node on ubuntu 12 04  Once I did that I re-ran these commands   rm -rf node modules npm cache clean npm install

User · Answer

Here s how I fixed the problem on Ubuntu    ln -s  usr bin nodejs  usr bin node npm install node-gyp cd node modules mongodb node modules bson node-gyp rebuild   Inspired by  mbochynski answer  but I had to create a symbolic link first  otherwise the rebuild failed

User · Answer

sudo npm rebuild was what fixed it for me

User · Answer

I also got this problem and it caused my sessions not to work  But not to break either     I used a mongoose connection   I had this   var mongoose   require  mongoose    var express   require  express    var cookieParser   require  cookie-parser    var expressSession   require  express-session    var MongoStore   require  connect-mongo   expressSession       var app   express    app set  port   process env PORT    8080   app use bodyParser   mongoose connect  mongodb   localhost TEST    var db   mongoose connection  db on  error   console error bind console   connection error      db once  open   function callback        console log  MongoDB connected          app use cookieParser     app use expressSession     secret   mysecret     cookie        maxAge  null      expires  moment   utc   add  days  10  toDate      10 dagen        store  new MongoStore     db   TEST     collection   sessions         Very straightforward  But req session stayed always empty   rm -rf node modules npm cache clean npm install   Did the trick  Watch out you dont have a  mongodb  in your package json  Just Mongoose and connect-mongo

User · Answer

I guess you did not have the make tools available when you installed your mongodb library  I suggest you do   xcode-select --install  on a mac  or sudo apt-get install gcc make build-essential  on ubuntu   and run   rm -rf node modules npm cache clean npm install   OR just npm update based on  tobias comment  after installing build-essential   npm update

User · Answer

For me it only take to run these commands in my api directory   rm -rf node modules npm cache clean  npm install

User · Answer

I fixed it by changing line 10 of    node modules mongoose node modules mongodb node modules bson ext index js    from   bson   require     build Release bson      to   bson   require  bson

User · Answer

i was having same trouble tried so many options but in the last npm intall in my mean app folder worked

User · Answer

The bson extension message is just a warning  I get it all the time in my nodejs application    Things to check    MongoDB instance  Do you have a MongoDB instance running   Config  Did you correctly configure Mongoose to your MongoDB instance  I suspect your config is wrong  because the error message spits out a very weird string for your mongodb server host name

User · Answer

In our case  the reason that the c   version bson was not found was because we were behind a corporate proxy and something in the BSON build process needs to reach out to fetch files  When we looked in node modules bson builderror log  we saw an error like this   gyp WARN install got an error  rolling back install gyp ERR  configure error gyp ERR  stack Error  connect ECONNREFUSED gyp ERR  stack     at errnoException  net js 904 11  gyp ERR  stack     at Object afterConnect  as oncomplete   net js 895 19    Which suggested that the proxy might be the issue  Setting the http proxy and https proxy environment variables solved it

[javascript] Failed to load c++ bson extension

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