Sorry for the incomplete explanation.
i created the application in standard and deployed in my local server. After that we moved TR request to client system and i done extension for this application(bec the standard application should work in my server and as well as changes should do in client requirements).so i added this CacheBuster in extension application and deployed in client machine.
And yes sap-ui-cachebuster-info.json is loading successfully and the index.html, component.js, and view.xml also loading with 304. But view.controller gives above mentioned error. so i could not see the viewCustom.xml or viewCustom.controller in network tab