I get the following error when installing

[NFodrea]

Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.19.0-25-generic x86_64)

 * Documentation:  https://help.ubuntu.com/
Last login: Sun Jun  5 03:56:33 2016 from 10.0.2.2
vagrant@homestead:~$ apt-get install libopencv
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
vagrant@homestead:~$ sudo apt-get install libopencv
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libopencv
vagrant@homestead:~$ sudo apt-get install opencvlib
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package opencvlib
vagrant@homestead:~$ sudo apt-get install libopencv-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libopencv-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 103 not upgraded.
vagrant@homestead:~$ npm install
npm WARN enoent ENOENT: no such file or directory, open '/home/vagrant/package.json'
npm WARN vagrant No description
npm WARN vagrant No repository field.
npm WARN vagrant No README data
npm WARN vagrant No license field.
vagrant@homestead:~$ cd /vagrant
vagrant@homestead:/vagrant$ npm install

> opencv@3.2.0 install /vagrant/node_modules/opencv
> node-pre-gyp install --fallback-to-build

node-pre-gyp ERR! Tried to download: https://node-opencv.s3.amazonaws.com/opencv/v3.2.0/Release/node-v47-linux-x64.tar.gz 
node-pre-gyp ERR! Pre-built binaries not found for opencv@3.2.0 and node@5.10.1 (node-v47 ABI) (falling back to source compile with node-gyp) 
make: Entering directory `/vagrant/node_modules/opencv/build'
  CXX(target) Release/obj.target/opencv/src/init.o
In file included from ../src/OpenCV.h:12:0,
                 from ../src/init.cc:1:
../../nan/nan.h:324:27: error: redefinition of ‘template<class T> v8::Local<T> Nan::imp::NanEnsureHandleOrPersistent(const v8::Local<T>&)’
   NAN_INLINE v8::Local<T> NanEnsureHandleOrPersistent(const v8::Local<T> &val) {
                           ^
../../nan/nan.h:319:17: error: ‘template<class T> v8::Handle<T> Nan::imp::NanEnsureHandleOrPersistent(v8::Handle<T>&)’ previously declared here
   v8::Handle<T> NanEnsureHandleOrPersistent(const v8::Handle<T> &val) {
                 ^
../../nan/nan.h:344:27: error: redefinition of ‘template<class T> v8::Local<T> Nan::imp::NanEnsureLocal(v8::Handle<T>&)’
   NAN_INLINE v8::Local<T> NanEnsureLocal(const v8::Handle<T> &val) {
                           ^
../../nan/nan.h:334:27: error: ‘template<class T> v8::Local<T> Nan::imp::NanEnsureLocal(const v8::Local<T>&)’ previously declared here
   NAN_INLINE v8::Local<T> NanEnsureLocal(const v8::Local<T> &val) {
                           ^
../../nan/nan.h:757:13: error: ‘node::smalloc’ has not been declared
     , node::smalloc::FreeCallback callback
             ^
../../nan/nan.h:757:35: error: expected ‘,’ or ‘...’ before ‘callback’
     , node::smalloc::FreeCallback callback
                                   ^
../../nan/nan.h: In function ‘v8::Local<v8::Object> NanNewBufferHandle(char*, size_t, int)’:
../../nan/nan.h:761:50: error: ‘callback’ was not declared in this scope
         v8::Isolate::GetCurrent(), data, length, callback, hint);
                                                  ^
../../nan/nan.h:761:60: error: ‘hint’ was not declared in this scope
         v8::Isolate::GetCurrent(), data, length, callback, hint);
                                                            ^
../../nan/nan.h: In function ‘v8::Local<v8::Object> NanNewBufferHandle(const char*, uint32_t)’:
../../nan/nan.h:768:67: error: call of overloaded ‘New(v8::Isolate*, const char*&, uint32_t&)’ is ambiguous
     return node::Buffer::New(v8::Isolate::GetCurrent(), data, size);
                                                                   ^
../../nan/nan.h:768:67: note: candidates are:
In file included from ../src/OpenCV.h:8:0,
                 from ../src/init.cc:1:
/home/vagrant/.node-gyp/5.10.1/include/node/node_buffer.h:34:40: note: v8::MaybeLocal<v8::Object> node::Buffer::New(v8::Isolate*, v8::Local<v8::String>, node::encoding) <near match>
 NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
                                        ^
/home/vagrant/.node-gyp/5.10.1/include/node/node_buffer.h:34:40: note:   no known conversion for argument 3 from ‘uint32_t {aka unsigned int}’ to ‘node::encoding’
/home/vagrant/.node-gyp/5.10.1/include/node/node_buffer.h:46:40: note: v8::MaybeLocal<v8::Object> node::Buffer::New(v8::Isolate*, char*, size_t) <near match>
 NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
                                        ^
/home/vagrant/.node-gyp/5.10.1/include/node/node_buffer.h:46:40: note:   no known conversion for argument 2 from ‘const char*’ to ‘char*’
In file included from ../src/OpenCV.h:12:0,
                 from ../src/init.cc:1:
../../nan/nan.h: In function ‘v8::Local<v8::Object> NanNewBufferHandle(uint32_t)’:
../../nan/nan.h:772:61: error: could not convert ‘node::Buffer::New(v8::Isolate::GetCurrent(), ((size_t)size))’ from ‘v8::MaybeLocal<v8::Object>’ to ‘v8::Local<v8::Object>’
     return node::Buffer::New(v8::Isolate::GetCurrent(), size);
                                                             ^
../../nan/nan.h: In function ‘v8::Local<v8::Object> NanBufferUse(char*, uint32_t)’:
../../nan/nan.h:779:12: error: ‘Use’ is not a member of ‘node::Buffer’
     return node::Buffer::Use(v8::Isolate::GetCurrent(), data, size);
            ^
make: *** [Release/obj.target/opencv/src/init.o] Error 1
make: Leaving directory `/vagrant/node_modules/opencv/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:276:23)
gyp ERR! stack     at emitTwo (events.js:100:13)
gyp ERR! stack     at ChildProcess.emit (events.js:185:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:204:12)
gyp ERR! System Linux 3.19.0-25-generic
gyp ERR! command "/usr/bin/nodejs" "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "build" "--fallback-to-build" "--module=/vagrant/node_modules/opencv/build/opencv/v3.2.0/Release/node-v47-linux-x64/opencv.node" "--module_name=opencv" "--module_path=/vagrant/node_modules/opencv/build/opencv/v3.2.0/Release/node-v47-linux-x64"
gyp ERR! cwd /vagrant/node_modules/opencv
gyp ERR! node -v v5.10.1
gyp ERR! node-gyp -v v3.3.1
gyp ERR! not ok 
node-pre-gyp ERR! build error 
node-pre-gyp ERR! stack Error: Failed to execute '/usr/bin/nodejs /usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build --fallback-to-build --module=/vagrant/node_modules/opencv/build/opencv/v3.2.0/Release/node-v47-linux-x64/opencv.node --module_name=opencv --module_path=/vagrant/node_modules/opencv/build/opencv/v3.2.0/Release/node-v47-linux-x64' (1)
node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (/vagrant/node_modules/opencv/node_modules/node-pre-gyp/lib/util/compile.js:83:29)
node-pre-gyp ERR! stack     at emitTwo (events.js:100:13)
node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:185:7)
node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:850:16)
node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:5)
node-pre-gyp ERR! System Linux 3.19.0-25-generic
node-pre-gyp ERR! command "/usr/bin/nodejs" "/vagrant/node_modules/opencv/node_modules/.bin/node-pre-gyp" "install" "--fallback-to-build"
node-pre-gyp ERR! cwd /vagrant/node_modules/opencv
node-pre-gyp ERR! node -v v5.10.1
node-pre-gyp ERR! node-pre-gyp -v v0.6.28
node-pre-gyp ERR! not ok 
Failed to execute '/usr/bin/nodejs /usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build --fallback-to-build --module=/vagrant/node_modules/opencv/build/opencv/v3.2.0/Release/node-v47-linux-x64/opencv.node --module_name=opencv --module_path=/vagrant/node_modules/opencv/build/opencv/v3.2.0/Release/node-v47-linux-x64' (1)
npm WARN face-detection@1.0.0 No repository field.
npm WARN In opencv@3.2.0 replacing bundled version of node-pre-gyp with node-pre-gyp@0.6.28
npm ERR! Linux 3.19.0-25-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install"
npm ERR! node v5.10.1
npm ERR! npm  v3.8.3
npm ERR! code ELIFECYCLE

npm ERR! opencv@3.2.0 install: `node-pre-gyp install --fallback-to-build`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the opencv@3.2.0 install script 'node-pre-gyp install --fallback-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 opencv 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 opencv
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls opencv
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /vagrant/npm-debug.log

[yuanchenl]

+1

[danschultzer]

Seen the same error in sharp installation: nodejs/nan#420

The issue comes with NAN < v2.0. Try use the most recent opencv release:
"opencv": "5.0.0".