# "File Not Found" error when uploading asset

**URL:** https://community.cesium.com/t/file-not-found-error-when-uploading-asset/15064
**Category:** Cesium ion
**Created:** [August 30, 2021, 11:37pm UTC](https://community.cesium.com/t/file-not-found-error-when-uploading-asset/15064 "2021-08-30T23:37:05Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![odoan](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/odoan/32/3476_2.png) [@odoan](https://community.cesium.com/u/odoan)
#### Post date: [August 30, 2021, 11:37pm UTC](https://community.cesium.com/t/file-not-found-error-when-uploading-asset/15064/1 "2021-08-30T23:37:05Z")

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Hello I tried to upload my 3D model to Cesium Ion and got this error ![image](https://global.discourse-cdn.com/cesium/original/2X/3/34ff6e39463562f56f51aee83c26df88879f501c.png)

 ![image](https://global.discourse-cdn.com/cesium/original/2X/7/7d2e6d6ad1a5c525e4afb786d6a8969eb2756b0f.png)

What is wrong with the file? It is a .glb

Thanks in advance.

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### Author: ![Matt\_Boyd-Surka](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matt_boyd-surka/32/5511_2.png) [@Matt\_Boyd-Surka](https://community.cesium.com/u/Matt_Boyd-Surka)
#### Post date: [August 31, 2021, 4:50pm UTC](https://community.cesium.com/t/file-not-found-error-when-uploading-asset/15064/2 "2021-08-31T16:50:25Z")

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Hi @odoan, if the file finished uploading but couldn’t be processed, could you please send us the asset ID? We can investigate internally from there.

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<div class="post-metadata">

### Author: ![odoan](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/odoan/32/3476_2.png) [@odoan](https://community.cesium.com/u/odoan)
#### Post date: [August 31, 2021, 5:02pm UTC](https://community.cesium.com/t/file-not-found-error-when-uploading-asset/15064/3 "2021-08-31T17:02:46Z")

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Hello @Matt_Boyd-Surka!  
Thanks for your reply.  
You can try either 582343 or 582353

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<div class="post-metadata">

### Author: ![Matt\_Boyd-Surka](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matt_boyd-surka/32/5511_2.png) [@Matt\_Boyd-Surka](https://community.cesium.com/u/Matt_Boyd-Surka)
#### Post date: [September 8, 2021, 3:11pm UTC](https://community.cesium.com/t/file-not-found-error-when-uploading-asset/15064/4 "2021-09-08T15:11:58Z")

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Hi @odoan,

Thank you for sharing the data. I converted the glb to a glTF using [gltf-pipeline](https://github.com/CesiumGS/gltf-pipeline) in order to examine its contents. I see that the model has the following array in [KHR\_techniques\_webgl.shaders](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_techniques_webgl/README.md#shader):

```auto
"shaders": [
        {
          "type": 35632,
          "name": "input0FS",
          "bufferView": 2
        },
        {
          "type": 35633,
          "name": "input0VS",
          "bufferView": 3
        },
        {
          "type": 35632,
          "name": "input1FS",
          "bufferView": 4
        },
        {
          "type": 35633,
          "name": "input1VS",
          "bufferView": 5
        },
        {
          "type": 35632,
          "name": "input2FS",
          "bufferView": 6
        },
        {
          "type": 35633,
          "name": "input2VS",
          "bufferView": 7
        }
      ]

```

It seems like it is unable to find one or more of the custom shaders. I unfortunately don’t have a solution for this yet, but I’ve opened a ticket to investigate the problem. Can you tell me how the model was created (e.g., what software was used, where you got it from)? That might help us understand the issue.

Thanks,  
Matt