Node js runing error



I run node js using “node app.js”, then I just close the terminal. I think the application has stopped. But there is some error when I ran node again. Anyone have idea with it?

Error: cannot open shared object file: No such file or directory
at Error (native)
at Object.Module._extensions…node (module.js:434:18)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object. (/home/ubuntu/workspace/node_modules/oracledb/lib/oracledb.js:27:19)
at Module._compile (module.js:409:26)
at Object.Module._extensions…js (module.js:416:10)
at Module.load (module.js:343:32)

Then I need to set the link path agin
export LD_LIBRARY_PATH=/opt/oracle/instantclient:$LD_LIBRARY_PATH