bcrypt library installation error

C:\Users\Ninja\Desktop\npm>npm install  bcrypt

> bcrypt@1.0.2 install C:\Users\Ninja\Desktop\npm\node_modules\bcrypt
> node-pre-gyp install --fallback-to-build

node-pre-gyp ERR! Tried to download(404): https://github.com/kelektiv/node.bcryp
t.js/releases/download/v1.0.2/bcrypt_lib-v1.0.2-node-v48-win32-x64.tar.gz
node-pre-gyp ERR! Pre-built binaries not found for bcrypt@1.0.2 and node@6.9.1 (
node-v48 ABI) (falling back to source compile with node-gyp)

C:\Users\Ninja\Desktop\npm\node_modules\bcrypt>if not defined npm_config_node_gy
p (node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_m
odules\node-gyp\bin\node-gyp.js" clean )  else (node "" clean )

C:\Users\Ninja\Desktop\npm\node_modules\bcrypt>if not defined npm_config_node_gy
p (node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_m
odules\node-gyp\bin\node-gyp.js" configure --fallback-to-build --module=C:\Users
\Ninja\Desktop\npm\node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name
=bcrypt_lib --module_path=C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\lib\bin
ding --python=C:\Users\Ninja\.windows-build-tools\python27\python.exe --msvs_ver
sion=2015 )  else (node "" configure --fallback-to-build --module=C:\Users\Ninja
\Desktop\npm\node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name=bcryp
t_lib --module_path=C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\lib\binding -
-python=C:\Users\Ninja\.windows-build-tools\python27\python.exe --msvs_version=2
015 )

C:\Users\Ninja\Desktop\npm\node_modules\bcrypt>if not defined npm_config_node_gy
p (node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_m
odules\node-gyp\bin\node-gyp.js" build --fallback-to-build --module=C:\Users\Nin
ja\Desktop\npm\node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name=bcr
ypt_lib --module_path=C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\lib\binding
 )  else (node "" build --fallback-to-build --module=C:\Users\Ninja\Desktop\npm\
node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name=bcrypt_lib --modul
e_path=C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\lib\binding )
Building the projects in this solution one at a time. To enable parallel build,
please add the "/m" switch.
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.Cpp.Platform.t
argets(64,5): error MSB8020: The build tools for v140 (Platform Toolset = 'v140
') cannot be found. To build using the v140 build tools, please install v140 bu
ild tools.  Alternatively, you may upgrade to the current Visual Studio tools b
y selecting the Project menu or right-click the solution, and then selecting "U
pgrade Solution...". [C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\build\bcry
pt_lib.vcxproj]
gyp ERR! build error
gyp ERR! stack Error: `C:\Program Files (x86)\MSBuild\12.0\bin\msbuild.exe` fail
ed with exit code: 1
gyp ERR! stack     at ChildProcess.onExit (C:\Program Files\nodejs\node_modules\
npm\node_modules\node-gyp\lib\build.js:276:23)
gyp ERR! stack     at emitTwo (events.js:106:13)
gyp ERR! stack     at ChildProcess.emit (events.js:191:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_proces
s.js:215:12)
gyp ERR! System Windows_NT 6.3.9600
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodej
s\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "build" "--fallb
ack-to-build" "--module=C:\\Users\\Ninja\\Desktop\\npm\\node_modules\\bcrypt\\li
b\\binding\\bcrypt_lib.node" "--module_name=bcrypt_lib" "--module_path=C:\\Users
\\Ninja\\Desktop\\npm\\node_modules\\bcrypt\\lib\\binding"
gyp ERR! cwd C:\Users\Ninja\Desktop\npm\node_modules\bcrypt
gyp ERR! node -v v6.9.1
gyp ERR! node-gyp -v v3.4.0
gyp ERR! not ok
node-pre-gyp ERR! build error
node-pre-gyp ERR! stack Error: Failed to execute 'node-gyp.cmd build --fallback-
to-build --module=C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\lib\binding\bcr
ypt_lib.node --module_name=bcrypt_lib --module_path=C:\Users\Ninja\Desktop\npm\n
ode_modules\bcrypt\lib\binding' (1)
node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (C:\Users\Ninja\Desktop\
npm\node_modules\node-pre-gyp\lib\util\compile.js:83:29)
node-pre-gyp ERR! stack     at emitTwo (events.js:106:13)
node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:191:7)
node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:877:16)
node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/chi
ld_process.js:226:5)
node-pre-gyp ERR! System Windows_NT 6.3.9600
node-pre-gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Ninj
a\\Desktop\\npm\\node_modules\\node-pre-gyp\\bin\\node-pre-gyp" "install" "--fal
lback-to-build"
node-pre-gyp ERR! cwd C:\Users\Ninja\Desktop\npm\node_modules\bcrypt
node-pre-gyp ERR! node -v v6.9.1
node-pre-gyp ERR! node-pre-gyp -v v0.6.32
node-pre-gyp ERR! not ok
Failed to execute 'node-gyp.cmd build --fallback-to-build --module=C:\Users\Ninj
a\Desktop\npm\node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name=bcry
pt_lib --module_path=C:\Users\Ninja\Desktop\npm\node_modules\bcrypt\lib\binding'
 (1)
npm WARN enoent ENOENT: no such file or directory, open 'C:\Users\Ninja\Desktop\
npm\package.json'
npm WARN npm No description
npm WARN npm No repository field.
npm WARN npm No README data
npm WARN npm No license field.
npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\
node_modules\\npm\\bin\\npm-cli.js" "install" "bcrypt"
npm ERR! node v6.9.1
npm ERR! npm  v3.10.8
npm ERR! code ELIFECYCLE

npm ERR! bcrypt@1.0.2 install: `node-pre-gyp install --fallback-to-build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bcrypt@1.0.2 install script 'node-pre-gyp install --fallb
ack-to-build'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the bcrypt package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-pre-gyp install --fallback-to-build
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs bcrypt
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls bcrypt
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\Ninja\Desktop\npm\npm-debug.log






=======
Node version - 6.9.1
npm version - 3.10.8
======