# CesiumForUnityNative-Runtime.vcxproj

**URL:** <https://community.cesium.com/t/cesiumforunitynative-runtime-vcxproj/30069>\
**Category:** Cesium for Unity\
**Created:** [February 22, 2024, 6:25am UTC](https://community.cesium.com/t/cesiumforunitynative-runtime-vcxproj/30069 "2024-02-22T06:25:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mell\_mell](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/mell_mell/32/15293_2.png) [@mell\_mell](https://community.cesium.com/u/mell_mell)\
**Post date:** [February 22, 2024, 6:25am UTC](https://community.cesium.com/t/cesiumforunitynative-runtime-vcxproj/30069/1 "2024-02-22T06:25:55Z")

</div>

64\>LINK : fatal error LNK1104: Cannot open file ‘…\extern\cesium-native\Cesium3DTilesContent\Debug\Cesium3DTilesContentd.lib’.  
64\>Builded the “CesiumForUnityNative-Runtime.vcxproj” project. - failure  
65\>------ Start build: Project: ALL\_BUILD, Configuration: Debug x64 ------  
65\>Building Custom Rule C:/Users/PCN\_VC/cesium-unity-samples/Packages/com.cesium.unity/native~/CMakeLists.txt  
66\>------ Builds skipped: Project: PACKAGE, Configuration: Debug x64 ------  
66\>No projects have been selected to build for this solution configuration.  
67\>------ Build skipped: Project: INSTALL, Configuration: Debug x64 ------  
67\>No projects have been selected to build for this solution configuration.  
========== Builds: 63 successful, 2 failed, 0 up to date, 2 skipped ==========  
========== The build started at 3:16 PM and took 03:20.562 minutes ==========

* * *

> LINK : fatal error LNK1104: ‘…\extern\cesium-native\Cesium3DTilesContent\Debug\Cesium3DTilesContentd.lib’ 파일을 열 수 없습니다.  
> 64\>“CesiumForUnityNative-Runtime.vcxproj” 프로젝트를 빌드했습니다. - 실패  
> 65\>------ 빌드 시작: 프로젝트: ALL\_BUILD, 구성: Debug x64 ------  
> 65\>Building Custom Rule C:/Users/PCN\_VC/cesium-unity-samples/Packages/com.cesium.unity/native~/CMakeLists.txt  
> 66\>------ 건너뛴 빌드: 프로젝트: PACKAGE, 구성: Debug x64 ------  
> 66\>이 솔루션 구성에 대해 빌드하도록 선택된 프로젝트가 없습니다.  
> 67\>------ 건너뛴 빌드: 프로젝트: INSTALL, 구성: Debug x64 ------  
> 67\>이 솔루션 구성에 대해 빌드하도록 선택된 프로젝트가 없습니다.  
> ========== 빌드: 63개 성공, 2개 실패, 0개 최신 상태, 2개 건너뜀 ==========  
> ========== 빌드이(가) 오후 3:16에 시작되었고 03:20.562 분이(가) 소요됨 ==========

I tried to solve this problem for 10 days at home and at work, but was not successful. How can I solve this problem?

The error that appears in Unity is like this.  
NotImplementedException: The native implementation is missing so Update cannot be invoked. This may be caused by a missing call to CreateImplementation in one of your constructors, or it may be that the entire native implementation shared library is missing or out of date.  
CesiumForUnity.Cesium3DTileset.Update () (at Reinterop/Reinterop.RoslynSourceGenerator/Cesium3DTileset-generated.cs:103)

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<div class="post-metadata">

**Author:** ![janine](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/janine/32/5135_2.png) [@janine](https://community.cesium.com/u/janine)\
**Post date:** [February 22, 2024, 3:51pm UTC](https://community.cesium.com/t/cesiumforunitynative-runtime-vcxproj/30069/2 "2024-02-22T15:51:12Z")

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Hi @mell_mell,

From what I’m seeing, it looks like you’re building the plugin yourself from Github. Can you check that you followed all of the [developer setup instructions](https://github.com/CesiumGS/cesium-unity/blob/main/Documentation~/developer-setup.md)?

In particular, make sure that:

- You run `dotnet publish Reinterop~ -o .` _before_ opening Unity on the project.
- You add a space / linebreak to `ConfigureReinterop.cs` to force Unity to generate the files.
- You build the native implementation using `cmake` in the `native~` folder.

If something fails along the way, I would reinstall the project / package as a sanity check, because it may break the project if you do steps out of order. If you still can’t get it to work, please document _exactly_ what you did leading up to the error. Thank you!