unable to install contentful to gatsby

[atharvsharma1998]

hi I'm trying to install contentful but when I type the command
npm install -s [email protected] it does not install and gives the error
info sharp Using cached /Users/atharvsharma/.npm/_libvips/libvips-8.6.1-darwin-x64.tar.gz 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:82:20: error: no member named 'Handle' in namespace 'v8' bool HasAttr(v8::Handle<v8::Object> obj, std::string attr); ~~~~^ ../src/common.h:82:37: error: expected '(' for function-style cast or type construction bool HasAttr(v8::Handle<v8::Object> obj, std::string attr); ~~~~~~~~~~^ ../src/common.h:82:39: error: use of undeclared identifier 'obj' bool HasAttr(v8::Handle<v8::Object> obj, std::string attr); ^ ../src/common.h:82:56: error: expected '(' for function-style cast or type construction bool HasAttr(v8::Handle<v8::Object> obj, std::string attr); ~~~~~~~~~~~ ^ ../src/common.h:83:29: error: no member named 'Handle' in namespace 'v8' std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr); ~~~~^ ../src/common.h:83:46: error: expected '(' for function-style cast or type construction std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr); ~~~~~~~~~~^ ../src/common.h:83:48: error: use of undeclared identifier 'obj' std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr); ^ ../src/common.h:83:65: error: expected '(' for function-style cast or type construction std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr); ~~~~~~~~~~~ ^ ../src/common.h:84:37: 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:84:48: 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:84:65: 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:84:67: error: use of undeclared identifier 'obj' template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) { ^ ../src/common.h:84:84: 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:84:89: error: expected ';' at end of declaration template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) { ^ ; ../src/common.h:84:90: error: expected unqualified-id template<typename T> v8::Local<T> AttrAs(v8::Handle<v8::Object> obj, std::string attr) { ^ ../src/common.h:87:26: 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:87:37: error: no member named 'Handle' in namespace 'v8' template<typename T> T AttrTo(v8::Handle<v8::Object> obj, std::string attr) { ~~~~^ ../src/common.h:87:54: error: expected '(' for function-style cast or type construction template<typename T> T AttrTo(v8::Handle<v8::Object> obj, std::string attr) { ~~~~~~~~~~^ ../src/common.h:87:56: error: use of undeclared identifier 'obj' template<typename T> T AttrTo(v8::Handle<v8::Object> obj, std::string attr) { ^ ../src/common.h:87:73: error: expected '(' for function-style cast or type construction template<typename T> T AttrTo(v8::Handle<v8::Object> obj, std::string attr) { ~~~~~~~~~~~ ^ ../src/common.h:87:78: error: expected ';' at end of declaration 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

please help how can I resolve this