# Error on system.util.sendRequest. No response ever received **URL:** \ **Category:** Ignition\ **Created:** [October 11, 2021, 6:44pm UTC](https://forum.inductiveautomation.com/t/error-on-system-util-sendrequest-no-response-ever-received/51826 "2021-10-11T18:44:31Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [October 11, 2021, 7:08pm UTC](https://forum.inductiveautomation.com/t/error-on-system-util-sendrequest-no-response-ever-received/51826/2 "2021-10-11T19:08:57Z")
I would not expect this to work. You can't safely use components' properties or methods in background threads. ("Use" == read _ **or** _ write.) That you are losing something is the least bad thing that can happen (up to and including complete client lockup). Also, `print` is not likely to work in a background thread (though it sometimes does). Use a logger instead. Review this topic, then report back if you still have problems while following Swing's rules: > [@Update GUI via Asynchronous thread](https://forum.inductiveautomation.com/t/update-gui-via-asynchronous-thread/9666/3): > > Since this sort of thing pops up often, I created a set of wrappers that simplify this stuff, and allows you to directly use functions in your script modules. The wrappers take care of stuffing the arguments you supply into a temporary fuction’s default argument. For your case, try assignLater(). Nick’s example becomes: # In a script module in your project: import shutil def fileTransfer(label): path = system.file.openFile() newPath = "F:\NewFolder" shutil.copy2(path, newPath) sh… --- _[View the full topic](https://forum.inductiveautomation.com/t/error-on-system-util-sendrequest-no-response-ever-received/51826)._