Unable to install package

Working on an Electron JS app for linux.
Followed the installation process given in about page, getting following errors while installing the package unable to proceed further.

```
> node-bluetooth@1.2.6 install /home/user/Documents/electronjs/bluetooth_test/node_modules/node-bluetooth
> node-gyp configure build

make: Entering directory '/home/user/Documents/electronjs/bluetooth_test/node_modules/node-bluetooth/build'
CXX(target) Release/obj.target/BluetoothSerialPort/src/linux/BluetoothSerialPort.o
../src/linux/BluetoothSerialPort.cc:18:14: error: variable or field ‘InitAll’ declared void
void InitAll(Handle exports) {
^
../src/linux/BluetoothSerialPort.cc:18:14: error: ‘Handle’ was not declared in this scope
../src/linux/BluetoothSerialPort.cc:18:27: error: expected primary-expression before ‘>’ token
void InitAll(Handle exports) {
^
../src/linux/BluetoothSerialPort.cc:18:29: error: ‘exports’ was not declared in this scope
void InitAll(Handle exports) {
^
In file included from ../src/linux/BluetoothSerialPort.cc:12:0:
../src/linux/BluetoothSerialPort.cc:23:34: error: ‘InitAll’ was not declared in this scope
NODE_MODULE(BluetoothSerialPort, InitAll)
^
/home/user/.cache/node-gyp/12.8.1/include/node/node.h:556:36: note: in definition of macro ‘NODE_MODULE_X’
(node::addon_register_func) (regfunc), \
^
../src/linux/BluetoothSerialPort.cc:23:1: note: in expansion of macro ‘NODE_MODULE’
NODE_MODULE(BluetoothSerialPort, InitAll)
^
BluetoothSerialPort.target.mk:115: recipe for target 'Release/obj.target/BluetoothSerialPort/src/linux/BluetoothSerialPort.o' failed
make: *** [Release/obj.target/BluetoothSerialPort/src/linux/BluetoothSerialPort.o] Error 1
make: Leaving directory '/home/user/Documents/electronjs/bluetooth_test/node_modules/node-bluetooth/build'
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/home/user/.nvm/versions/node/v12.8.1/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:196:23)
gyp ERR! stack at ChildProcess.emit (events.js:203:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:272:12)
gyp ERR! System Linux 4.15.0-66-generic
gyp ERR! command "/home/user/.nvm/versions/node/v12.8.1/bin/node" "/home/user/.nvm/versions/node/v12.8.1/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "configure" "build"
gyp ERR! cwd /home/user/Documents/electronjs/bluetooth_test/node_modules/node-bluetooth
gyp ERR! node -v v12.8.1
gyp ERR! node-gyp -v v5.0.3
gyp ERR! not ok
npm WARN bluetooth_test@1.0.0 No description
npm WARN bluetooth_test@1.0.0 No repository field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-bluetooth@1.2.6 install: `node-gyp configure build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-bluetooth@1.2.6 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
```

OS - Ubuntu 16.04
Node - 12.8.1
NPM - 6.10.2
Electron JS - 7.0.1
Node-gyp - 5.0.3

Start by reproducing the npm install with Node 12.8.1, node-gyp 5.0.3, Electron 7.0.1, and Ubuntu 16.04, then inspect src/linux/BluetoothSerialPort.cc around InitAll and the NODE_MODULE entry point. Done means the node-bluetooth package installs successfully without the reported C++ build errors.

Written by the indexing model from the issue text.