Cannot install via npm on my Mac

#1

When I try to install via npm using npm install @vapid/cli -g, I get this error –

npm WARN deprecated boom@7.3.0: This module has moved and is now available at @hapi/boom. Please update your dependencies as this version is no longer maintained an may contain bugs and security issues.
npm WARN deprecated hoek@6.1.3: This module has moved and is now available at @hapi/hoek. Please update your dependencies as this version is no longer maintained an may contain bugs and security issues.
npm WARN deprecated browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.
npm WARN deprecated flatten@1.0.2: I wrote this module a very long time ago; you should use something else.
/usr/local/bin/vapid -> /usr/local/lib/node_modules/@vapid/cli/bin/cli.js

> fsevents@1.2.9 install /usr/local/lib/node_modules/@vapid/cli/node_modules/fsevents
> node install

node-pre-gyp WARN Using request for node-pre-gyp https download 
[fsevents] Success: "/usr/local/lib/node_modules/@vapid/cli/node_modules/fsevents/lib/binding/Release/node-v72-darwin-x64/fse.node" is installed via remote

> bcrypt@3.0.6 install /usr/local/lib/node_modules/@vapid/cli/node_modules/bcrypt
> node-pre-gyp install --fallback-to-build

node-pre-gyp WARN Using request for node-pre-gyp https download 
node-pre-gyp WARN Tried to download(404): https://github.com/kelektiv/node.bcrypt.js/releases/download/v3.0.6/bcrypt_lib-v3.0.6-node-v72-darwin-x64-unknown.tar.gz 
node-pre-gyp WARN Pre-built binaries not found for bcrypt@3.0.6 and node@12.1.0 (node-v72 ABI, unknown) (falling back to source compile with node-gyp) 
  CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
  CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt.o
  CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt_node.o
  SOLINK_MODULE(target) Release/bcrypt_lib.node
  COPY /usr/local/lib/node_modules/@vapid/cli/node_modules/bcrypt/lib/binding/bcrypt_lib.node
  TOUCH Release/obj.target/action_after_build.stamp

> sharp@0.21.3 install /usr/local/lib/node_modules/@vapid/cli/node_modules/sharp
> (node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)

info sharp Using cached /Users/yashghelani/.npm/_libvips/libvips-8.7.0-darwin-x64.tar.gz
prebuild-install WARN install No prebuilt binaries found (target=12.1.0 runtime=node arch=x64 libc= platform=darwin)
  TOUCH Release/obj.target/libvips-cpp.stamp
  CXX(target) Release/obj.target/sharp/src/common.o
In file included from ../src/common.cc:27:
../src/common.h:78:20: error: no member named 'Handle' in namespace 'v8'
  bool HasAttr(v8::Handle<v8::Object> obj, std::string attr);
           ~~~~^
../src/common.h:78:37: error: expected '(' for function-style cast or type construction
  bool HasAttr(v8::Handle<v8::Object> obj, std::string attr);
                      ~~~~~~~~~~^
../src/common.h:78:39: error: use of undeclared identifier 'obj'
  bool HasAttr(v8::Handle<v8::Object> obj, std::string attr);
                                  ^
../src/common.h:78:56: error: expected '(' for function-style cast or type construction
  bool HasAttr(v8::Handle<v8::Object> obj, std::string attr);
                                       ~~~~~~~~~~~ ^
../src/common.h:79:29: error: no member named 'Handle' in namespace 'v8'
  std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr);
                    ~~~~^
../src/common.h:79:46: error: expected '(' for function-style cast or type construction
  std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr);
                               ~~~~~~~~~~^
../src/common.h:79:48: error: use of undeclared identifier 'obj'
  std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr);
                                           ^
../src/common.h:79:65: error: expected '(' for function-style cast or type construction
  std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr);
                                                ~~~~~~~~~~~ ^
../src/common.h:80:38: error: no member named 'Handle' in namespace 'v8'
  std::vector<double> AttrAsRgba(v8::Handle<v8::Object> obj, std::string attr);
                             ~~~~^
../src/common.h:80:55: error: expected '(' for function-style cast or type construction
  std::vector<double> AttrAsRgba(v8::Handle<v8::Object> obj, std::string attr);
                                        ~~~~~~~~~~^
../src/common.h:80:57: error: use of undeclared identifier 'obj'
  std::vector<double> AttrAsRgba(v8::Handle<v8::Object> obj, std::string attr);
                                                    ^
../src/common.h:80:74: error: expected '(' for function-style cast or type construction
  std::vector<double> AttrAsRgba(v8::Handle<v8::Object> obj, std::string attr);
                                                         ~~~~~~~~~~~ ^
../src/common.h:81:37: warning: variable templates are a C++14 extension [-Wc++14-extensions]
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                ^
../src/common.h:81:48: error: no member named 'Handle' in namespace 'v8'
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                       ~~~~^
../src/common.h:81:65: error: expected '(' for function-style cast or type construction
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                                  ~~~~~~~~~~^
../src/common.h:81:67: error: use of undeclared identifier 'obj'
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                                              ^
../src/common.h:81:84: error: expected '(' for function-style cast or type construction
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                                                   ~~~~~~~~~~~ ^
../src/common.h:81:89: error: expected ';' at end of declaration
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                                                                    ^
                                                                                    ;
../src/common.h:81:90: error: expected unqualified-id
  template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) {
                                                                                     ^
../src/common.h:84:26: warning: variable templates are a C++14 extension [-Wc++14-extensions]
  template<typename T> T AttrTo(v8::Handle<v8::Object> obj, std::string attr) {
                     ^
../src/common.h:84:37: error: no member named 'Handle' in namespace 'v8'
  template<typename T> T AttrTo(v8::Handle<v8::Object> obj, std::string attr) {
                            ~~~~^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
2 warnings and 20 errors generated.
make: *** [Release/obj.target/sharp/src/common.o] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:262:23)
gyp ERR! stack     at ChildProcess.emit (events.js:196:13)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:256:12)
gyp ERR! System Darwin 18.5.0
gyp ERR! command "/usr/local/Cellar/node/12.1.0/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /usr/local/lib/node_modules/@vapid/cli/node_modules/sharp
gyp ERR! node -v v12.1.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok 
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! sharp@0.21.3 install: `(node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the sharp@0.21.3 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!     /Users/yashghelani/.npm/_logs/2019-05-14T20_39_33_679Z-debug.log