While install npm on ngraph repository code it throws error

[MarudhuRk]

When I was install the npm on ngraph it throws
deprecated error.

`marudhu@marudhu-Vostro-2420:~/Repository/word-duniya/ngraph$ npm install

[email protected] install /home/marudhu/Repository/word-duniya/ngraph/node_modules/contextify
node-gyp rebuild

make: Entering directory '/home/marudhu/Repository/word-duniya/ngraph/node_modules/contextify/build'
CXX(target) Release/obj.target/contextify/src/contextify.o
../src/contextify.cc: In static member function ‘static v8::Localv8::Context ContextWrap::createV8Context(v8::Localv8::Object)’:
../src/contextify.cc:131:68: warning: ‘v8::Localv8::Object v8::Function::NewInstance() const’ is deprecated: Use maybe version [-Wdeprecated-declarations]
Local wrapper = Nan::New(constructor)->NewInstance();
^
In file included from /home/marudhu/.node-gyp/7.10.0/include/node/v8.h:26:0,
from /home/marudhu/.node-gyp/7.10.0/include/node/node.h:42,
from ../src/contextify.cc:1:
/home/marudhu/.node-gyp/7.10.0/include/node/v8.h:3662:52: note: declared here
V8_DEPRECATED("Use maybe version", Local NewInstance() const);
^
/home/marudhu/.node-gyp/7.10.0/include/node/v8config.h:329:3: note: in definition of macro ‘V8_DEPRECATED’
declarator attribute((deprecated(message)))
^
../src/contextify.cc:150:16: error: ‘class v8::ObjectTemplate’ has no member named ‘SetAccessCheckCallbacks’
otmpl->SetAccessCheckCallbacks(GlobalPropertyNamedAccessCheck,
^
../src/contextify.cc: In static member function ‘static void ContextWrap::GlobalPropertyGetter(v8::Localv8::String, const Nan::PropertyCallbackInfov8::Value&)’:
../src/contextify.cc:182:80: warning: ‘v8::Localv8::Value v8::Object::GetRealNamedProperty(v8::Localv8::String)’ is deprecated: Use maybe version [-Wdeprecated-declarations]
Local rv = Nan::New(ctx->sandbox)->GetRealNamedProperty(property);
^
In file included from /home/marudhu/.node-gyp/7.10.0/include/node/v8.h:26:0,
from /home/marudhu/.node-gyp/7.10.0/include/node/node.h:42,
from ../src/contextify.cc:1:
/home/marudhu/.node-gyp/7.10.0/include/node/v8.h:3234:30: note: declared here
Local GetRealNamedProperty(Local key));
^
/home/marudhu/.node-gyp/7.10.0/include/node/v8config.h:329:3: note: in definition of macro ‘V8_DEPRECATED’
declarator attribute((deprecated(message)))
^
../src/contextify.cc: In static member function ‘static void ContextWrap::GlobalPropertyQuery(v8::Localv8::String, const Nan::PropertyCallbackInfov8::Integer&)’:
../src/contextify.cc:209:67: warning: ‘v8::Localv8::Value v8::Object::GetRealNamedProperty(v8::Localv8::String)’ is deprecated: Use maybe version [-Wdeprecated-declarations]
if (!Nan::New(ctx->sandbox)->GetRealNamedProperty(property).IsEmpty() ||
^
In file included from /home/marudhu/.node-gyp/7.10.0/include/node/v8.h:26:0,
from /home/marudhu/.node-gyp/7.10.0/include/node/node.h:42,
from ../src/contextify.cc:1:
/home/marudhu/.node-gyp/7.10.0/include/node/v8.h:3234:30: note: declared here
Local GetRealNamedProperty(Local key));
^
/home/marudhu/.node-gyp/7.10.0/include/node/v8config.h:329:3: note: in definition of macro ‘V8_DEPRECATED’
declarator attribute((deprecated(message)))
^
../src/contextify.cc:210:71: warning: ‘v8::Localv8::Value v8::Object::GetRealNamedProperty(v8::Localv8::String)’ is deprecated: Use maybe version [-Wdeprecated-declarations]
!Nan::New(ctx->proxyGlobal)->GetRealNamedProperty(property).IsEmpty()) {
^
In file included from /home/marudhu/.node-gyp/7.10.0/include/node/v8.h:26:0,
from /home/marudhu/.node-gyp/7.10.0/include/node/node.h:42,
from ../src/contextify.cc:1:
/home/marudhu/.node-gyp/7.10.0/include/node/v8.h:3234:30: note: declared here
Local GetRealNamedProperty(Local key));
^
/home/marudhu/.node-gyp/7.10.0/include/node/v8config.h:329:3: note: in definition of macro ‘V8_DEPRECATED’
declarator attribute((deprecated(message)))
^
contextify.target.mk:94: recipe for target 'Release/obj.target/contextify/src/contextify.o' failed
make: *** [Release/obj.target/contextify/src/contextify.o] Error 1
make: Leaving directory '/home/marudhu/Repository/word-duniya/ngraph/node_modules/contextify/build'
gyp ERR! build error
gyp ERR! stack Error: make failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:258:23)
gyp ERR! stack at emitTwo (events.js:106:13)
gyp ERR! stack at ChildProcess.emit (events.js:194:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
gyp ERR! System Linux 4.4.0-77-generic
gyp ERR! command "/usr/bin/nodejs" "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/marudhu/Repository/word-duniya/ngraph/node_modules/contextify
gyp ERR! node -v v7.10.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
npm WARN ngraph No repository field.
npm WARN ngraph No license field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] install: node-gyp rebuild
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/marudhu/.npm/_logs/2017-09-27T09_10_16_267Z-debug.log
`