Extended application is not running

[Sreejith1]

Hi Experts,

I have extended one PP standard Fiori application using WebIDE and deployed back to GW server.Then SE80>BSP Application, I tried to run the index.html file. But I am getting error in the html for sanfbox.js(the server responded with a status of 404 (NOT FOUND))

I followed one blog

https://archive.sap.com/discussions/thread/3739142

and try to give url for ths sandbox.js but them it is showing below set of error

/shells/sandbox/fioriSandboxConfig.json 404 (NOT FOUND) /appconfig/fioriSandboxConfig.json 404 (Not found) /renderers/fiorisandbox/Renderer.js 404 (NOT FOUND) /renderers/fiorisandbox/Renderer.js: 404 - NOT FOUND

How to identify the issue related to it?

Thanks,

Ram