Nodejs cannot find installed module on Windows

Question

I am learning nodejs at the moment on Windows  Several modules are installed globally with npm cmd  and nodejs failed to find the installed modules  Take jade for example   npm install jade -g   Jade is installed in directory  C  Program Files  x86  nodejs node modules   but the following code will fail with a  Cannot find module  jade   error   var jade   require  jade      However  the code will run successfully when jade is locally installed  without -g option in npm   I don t want to use locally-installed modules  it s a waste of disk space for me  How can I make the globally-installed modules work on Windows

User · Answer

I ll just quote from this node s blog post        In general  the rule of thumb is          If you   re installing something that you want to use in your program  using require  whatever    then install it locally  at the root of   your project    If you   re installing something that you want to use in your shell  on the command line or something  install it globally  so that its   binaries end up in your PATH environment variable                   Of course  there are some cases where you want to do both    Coffee-script and Express both are good examples of apps that have a   command line interface  as well as a library  In those cases  you can   do one of the following          Install it in both places  Seriously  are you that short on disk space  It   s fine  really  They   re tiny JavaScript programs    Install it globally  and then npm link coffee-script or npm link express  if you   re on a platform that supports symbolic links   Then   you only need to update the global copy to update all the symlinks as   well

User · Answer

I know i can awake a zombie but i think this is still a problem  if you need global access to node modules on Windows 7  you need to add this to your global variable path    C  Users  USER  AppData Roaming npm   Important  only this without the node modules part  took me half hour to see this

User · Answer

I stumbled on this question because I want to use node js with visual studio 2015 on my new computer with windows 10  I used node js on windows 7 and 8 and 8 1 Never a problem node js finding a module  I use a legacy node js 0 10 39 because I have to use this version  because of the serial and RFXCOM module   The answer for windows 10 is to set the NODE PATH in the enviroment variables with C  Users User node modules

User · Answer

From my expierience with win8 1 npm installs modules on  C  Users  UserName  AppData Roaming npm node modules    but dumply searches them on C  Users  UserName  node modules   One simple solution reference module in application by full path   var jsonminify   require  C  Users Saulius AppData Roaming npm node modules jsonminify

User · Answer

I ran into this issue on Windows 7  running  npm install -g gulp   as administrator while being logged on as a normal user   Solution  When executing the same installation as normal user  not  run as admin  for cmd  all was fine  I guess it is related to the default install and search path

User · Answer

All of the above answers did not work for me  The only thing that worked eventually was to add the  AppData  npm to the environment Path variable  AND to delete the two ng files in C  Program Files nodejs   The ng packages were not installed in C  Program Files nodejs node modules  so it was apparent that using the ng binary from the nodejs directory would not work   I am not sure why it searched in this directory  because I already configured - PATH environment variable -  npmrc in the C  Users MyUser - Tried to add system variables and or NODE PATH

User · Answer

Just download and re-install the node from this and this will fix all the path issues    Don t forget to restart your command prompt or terminal

User · Answer

For windows  everybody said you should set environment variables for nodejs and npm modules  but do you know why  For some modules  they have command line tool  after installed the module  there are  module  cmd file in C  Program Files nodejs  and it s used for launch in window command  So if you don t add the path containing the cmd file to environment variables  PATH    you won t launch them successfully through command window

User · Answer

if you are using windows   it takes some steps   1  create a file called package json        name    hello     version    0 0 1     dependencies          express               where hello is the name of the package   and   means the latest version of your dependency  2  code to you project directory and run the following command  npm install  It installs the dependencies

User · Answer

To make it short  use npm link jade in your app directory

User · Answer

if you are in the windows7 platform maybe you should change the NODE PATH like this   AppData  npm node modules

User · Answer

I had the same issue  trying to install bower with npm install -g bower  I think this was because node was installed by another user  not me   I uninstalled node  and then I reinstalled it  During installation  I saw this text for the option Add to PATH   npm modules   Message in node installation    After node installation  I executed npm install -g bower again  And now bower works   Sure is not necessary reinstall node with own user  like me  Solution must be via NODE PATH or PATH variables  as other users have explained   This is only to remark that this problem occurs only if node has been installed by another user  or if during installation the option Add to PATH   npm modules has not been marked

User · Answer

I had a terrible time getting global modules to work  Eventually  I explicitly added C  Users yourusername AppData Roaming npm to the PATH variable under System Variables  I also needed to have this variable come before the nodejs path variable in the list   I am running Windows 10

User · Answer

For making it work on windows 10 I solved it by adding the folder  USERPROFILE  AppData Roaming npm to my PATH  Having  node modules appended like this   USERPROFILE  AppData Roaming npm node modules  did not work for me

User · Answer

For Windows 10  I had to locally install gulp in the folder   C  Users myaccount AppData Roaming npm node modules  npm install gulp   This fixed my issue of  gulp is not recognized

User · Answer

For me worked on Windows 10 npm config set prefix  AppData  npm node modules

User · Answer

Add an environment variable called NODE PATH and set it to  USERPROFILE  Application Data npm node modules  Windows XP    AppData  npm node modules  Windows 7 8 10   or wherever npm ends up installing the modules on your Windows flavor  To be done with it once and for all  add this as a System variable in the Advanced tab of the System Properties dialog  run control exe sysdm cpl System 3    Quick solution in Windows 7  is to just run   rem for future setx NODE PATH  AppData  npm node modules rem for current session set NODE PATH  AppData  npm node modules   It s worth to mention that NODE PATH is only used when importing modules in Node apps  When you want to use globally installed modules  binaries in your CLI you need to add it also to your PATH  but without node modules part  for example  AppData  npm in Windows 7 8 10      Old story  I m pretty much new to node js myself so I can be not entirely right but from my experience it s works this way    -g is not a way to install global libraries  it s only a way to place them on system path so you can call them from command line without writing the full path to them  It is useful  for example  then node app is converting local files  like less     if you install it globally you can use it in any directory  node js itself didn t look at the npm global dir  it is using another algorithm to find required files  http   nodejs org api modules html modules file modules  basically its scanning every folder in the path  starting from the current for node modules folder and checks it     See similar question for more details  How do I install a module globally using npm

User · Answer

Tried to add edit environment variables and come to conclude that    Edit add User variables  of the upper box  instead of System variables  of the lower part   otherwise you have to  run as administrator  to get it work  Append   AppData  npm to Path in order to use it as a command line tool  if supported  like jshint and grunt-cli   Create NODE PATH and set it  AppData  npm node modules in order to require   lt pkg name gt    in scripts without install it in the project directory   But npm link is suggested for this requirement if you re working on OS with mklink such as Vista and newer     Test environment    Win 7  Ent   64-bit  SP1   Node js 4 2 4  npm 2 14 12 Win 8 1  Ent   64-bit   Node js 0 10 30  npm 1 4 21

User · Answer

Alternatively you could add to    npmrc right prefix  I ve got C  Program Files nodejs for 64 Win7

[windows] Nodejs cannot find installed module on Windows

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