basic React Native SQLite script returning undefined which causes error

I'm trying to learn to use react-native-sqlite-storage as described on this page here:

https://github.com/andpor/react-native-sqlite-storage

I am working on a windows machine trying to build an android app. I have the following code:

import SQLite from 'react-native-sqlite-storage';

function errorCB(err) {
  console.log("SQL Error: " + err);
}

function successCB() {
  console.log("SQL executed fine");
}

function openCB() {
  console.log("Database OPENED");
}

var db = SQLite.openDatabase("test.db", "1.0", "Test Database", 200000, openCB, errorCB);
db.transaction((tx) => {
  tx.executeSql('SELECT * FROM Employees a, Departments b WHERE a.department = b.department_id', [], (tx, results) => {
      console.log("Query completed");

    });
});

export default 1;

When I run this, I get the error

undefined is not an object (evaluating 'NativeModules["SQLite"][method]')

The error is happening on the line var db = SQLite.openDatabase("test.db", "1.0", "Test Database", 200000, openCB, errorCB);

I suspect the reason the error is happening is because SQLite expects the existence of a database before you can actually open it. However, I do not see any instructions in the link above on how to create a database with react-native-sqlite-storage, so I'm not sure if my assumption is correct. Additionally, I assume I'd need to have a table for Employees, but again, the link above didn't explicitly state examples on how to create one. SO I don't know if my assumption is correct.

So how do I get SQLite.openDatabase() command to work?

More information

I deleted my project. Then I tried to re-install everything again, this time closely following the installation instructions for sqlite storage for android as mentioned on the andpor's github instructions (ie, modifying gradle files, updating MainApplication class etc...). Once I did that, running the command react-native run-android from the CLI causes this build error:

ERROR EPERM: operation not permitted, lstat 'C:\Users\John Lai\Projects\ReactNative\myapp\android\app\build\intermediates\exploded-aar\myapp\realm\unspecified\jars\classes.jar' {"errno":-4048,"code":"EPERM","syscall":"lstat","path":"C:\Users\John Lai\Projects\ReactNative\myapp\android\app\build\intermediates\exploded-aar\myapp\realm\unspecified\jars\classes.jar"} Error: EPERM: operation not permitted, lstat 'C:\Users\John Lai\Projects\ReactNative\myapp\android\app\build\intermediates\exploded-aar\myapp\realm\unspecified\jars\classes.jar' at Error (native)

I tried running this command as a regular user and as an administrator, and still the same issue.

More Information 2

I deleted my project. Then I did npm install for all my projects. Then I tried the commands rnpm link and react-native link react-native-sqlite-storage, both of which gave this error:

ERR! It seems something went wrong while linking. Error: spawn UNKNOWN Please file an issue here: https://github.com/rnpm/rnpm/issues

So now the project won't even build. Any ideas?