node-gyp build error "calling a protected constructor of class 'v8::HandleScope'" on mac - c++

Question

I use node-gyp to build my c++ library for node, and copy some examples on the web.
callback.cc
#include <node.h>
#include <v8.h>
using namespace v8;
Handle<Value> Method(const v8::internal::Arguments& args){
HandleScope scope;
return scope.Close(String::New("hello,world"));
}
void init(Handle<Object> exports) {
exports->Set(String::NewSymbol("hello"),FunctionTemplate::New(Method)->GetFunction());
}
NODE_MODULE(hello, init)
binding.gyp
{
"targets": [
{
"target_name": "hello",
"sources": [ "callback.cc" ]
}
]
}
run node-gyp configure ok.
run node-gyp build fail, error:
gyp info it worked if it ends with ok
gyp info using node-gyp#3.6.0
gyp info using node#7.9.0 | darwin | x64
gyp info spawn make
gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]
CXX(target) Release/obj.target/hello/callback.o
../callback.cc:5:15: error: calling a protected constructor of class 'v8::HandleScope'
HandleScope scope;
^
/Users/zhouweiming/.node-gyp/7.9.0/include/node/v8.h:908:13: note: declared protected here
V8_INLINE HandleScope() {}
^
../callback.cc:6:16: error: no member named 'Close' in 'v8::HandleScope'
return scope.Close(String::New("hello,world"));
~~~~~ ^
../callback.cc:6:30: error: no member named 'New' in 'v8::String'
return scope.Close(String::New("hello,world"));
~~~~~~~~^
../callback.cc:9:65: error: cannot initialize a parameter of type 'v8::Isolate *' with an lvalue of type 'Handle<v8::Value> (const v8::internal::Arguments &)'
(aka 'v8::Local<v8::Value> (const v8::internal::Arguments &)')
exports->Set(String::NewSymbol("hello"),FunctionTemplate::New(Method)->GetFunction());
^~~~~~
/Users/zhouweiming/.node-gyp/7.9.0/include/node/v8.h:5079:16: note: passing argument to parameter 'isolate' here
Isolate* isolate, FunctionCallback callback = 0,
^
../callback.cc:9:24: error: no member named 'NewSymbol' in 'v8::String'
exports->Set(String::NewSymbol("hello"),FunctionTemplate::New(Method)->GetFunction());
~~~~~~~~^
5 errors generated.
make: *** [Release/obj.target/hello/callback.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/.node-gyp_npminstall/node_modules/.node- gyp#3.6.0/lib/build.js:285:23)
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 Darwin 16.5.0
gyp ERR! command "/usr/local/Cellar/node/6.9.1/bin/node" "/usr/local/bin/node-gyp" "build"
gyp ERR! cwd /Users/zhouweiming/data/project/electron-projects/dll
gyp ERR! node -v v7.9.0
gyp ERR! node-gyp -v v3.6.0
gyp ERR! not ok
I'm not a c++ coder, please help me.
node: 7.9.0
node-gyp: 3.6.0
xcode: 8.1
mac: 10.12.4
gcc:
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 8.0.0 (clang-800.0.42.1)
Target: x86_64-apple-darwin16.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

Answer 1

I have solved it. Because the c++ code in demo is outdated.
the new codes like:
#include <node/v8.h>
#include <node/node.h>
using namespace node;
using namespace v8;
void Method(const v8::FunctionCallbackInfo<v8::Value>& args) {
v8::Isolate* isolate = args.GetIsolate();
v8::HandleScope scope(isolate);
args.GetReturnValue().Set(v8::String::NewFromUtf8(isolate, "Hello world"));
}
void init(v8::Local<v8::Object> target) {
NODE_SET_METHOD(target, "hello", Method);
}
NODE_MODULE(binding, init);
there are too many outdated examples on the web, I will keep this question