libclntsh.so.12.1 : cannot open shared object file error when running sample of node-oracledb

My goal is to connect to a oracle database on a VMWare guest machine (OpenSuse) from Ubuntu.

For now I have only installed the oracledb driver, and was trying to run the example connect program given.

The steps that I am following are from the github INSTALL page. What I have done till now are these :

1) Since I have node.js already installed I skipped the step 3.1.

2) I have successfully downloaded and extracted the basic and sdk as mentioned in step 3.2.

3) Since I couldn't find any package named libaio but I did found libaio1. So I installed libaio1.

4) I made the environment variable LD_LIBRARY_PATH and the contents of it on my PC is /opt/oracle/instantclient.

5) As mentioned in step 3.3; even though it wasn't mandatory in my case; I made two environment variables: OCI_LIB_DIR with contents /opt/oracle/instantclient and OCI_INC_DIR with contents /opt/oracle/instantclient/sdk/include.

6) Installed node-oracledb.

I am trying to run the example connect program. The code that I am using is here https://github.com/ishanatmuz/oracle-test. When I run node connect.js I am getting this error.

/home/ishan/node.js/oracle-test/node_modules/oracledb/lib/oracledb.js:28
throw err;
          ^
Error: libclntsh.so.12.1: cannot open shared object file: No such file or directory
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/home/ishan/node.js/oracle-test/node_modules/oracledb/lib/oracledb.js:23:15)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (modullibclntsh.so.12.1e.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)

Since I haven't started the VMware guest machine yet; I was hoping of getting an error regarding no such database instance found. And then only after that run the VMWare machine and connect to the database inside it. But instead I am getting the error of cannot open shared object file for libclntsh.so.12.1.