# Tile Rendering and Seamless Flying in Multiplayer Environment

**URL:** <https://community.cesium.com/t/tile-rendering-and-seamless-flying-in-multiplayer-environment/33712>\
**Category:** Cesium for Unreal\
**Created:** [July 11, 2024, 6:01am UTC](https://community.cesium.com/t/tile-rendering-and-seamless-flying-in-multiplayer-environment/33712 "2024-07-11T06:01:18Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Kevin\_Ring](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kevin_ring/32/2003_2.png) [@Kevin\_Ring](https://community.cesium.com/u/Kevin_Ring)\
**Post date:** [July 31, 2024, 3:21am UTC](https://community.cesium.com/t/tile-rendering-and-seamless-flying-in-multiplayer-environment/33712/14 "2024-07-31T03:21:41Z")

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> CesiumIonClient.lib(Connection.obj) : error LNK2019: unresolved external symbol \_Thrd\_sleep\_for referenced in function “void \_\_cdecl std::this\_thread::sleep\_for\<\_\_int64,struct std::ratio\<1,1000\> \>(class std::chrono::duration\<\_\_int64,struct std::ratio\<1,1000\> \> const &)” (??$sleep\_for@\_JU?$ratio@$00$0DOI@@std@@@this\_thread@std@@YAXAEBV?$duration@\_JU?$ratio@$00$0DOI@@std@@@chrono@1@@Z)

I just happened to run into this myself. In my case, it was caused by having the “MSVC v143 - VS2022 C++ x64/x86 build tools (v14.34-17.4)” component of Visual Studio 2022 installed. When this particular version of MSVC is installed, Unreal will use it. When you build cesium-native, though, cmake will usually pick the latest version of MSVC available. That meant I was building Cesium Native with MSVC v14.40, and attempting to link with v14.34, which is not a valid thing to do.

You can fix this by either uninstalling the extraneous version of MSVC, or by telling cmake to use it. You can do the latter by adding `-DCMAKE_GENERATOR_TOOLSET="version=14.34"` to the cmake configure command line when building Cesium Native.

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_[View the full topic](https://community.cesium.com/t/tile-rendering-and-seamless-flying-in-multiplayer-environment/33712)._