# HTML5 build fails with RiveSceneBuilder.getSrcBuilder error — Defold 1.14.0 / Rive 13.2.2

**URL:** <https://forum.defold.com/t/html5-build-fails-with-rivescenebuilder-getsrcbuilder-error-defold-1-14-0-rive-13-2-2/83374>\
**Category:** Bugs\
**Created:** [October 25, 2026, 8:13pm UTC](https://forum.defold.com/t/html5-build-fails-with-rivescenebuilder-getsrcbuilder-error-defold-1-14-0-rive-13-2-2/83374 "2026-10-25T20:13:11Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![PendragonNL](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pendragonnl/32/37658_2.png) [@PendragonNL](https://forum.defold.com/u/PendragonNL)\
**Post date:** [October 25, 2026, 8:13pm UTC](https://forum.defold.com/t/html5-build-fails-with-rivescenebuilder-getsrcbuilder-error-defold-1-14-0-rive-13-2-2/83374/1 "2026-10-25T20:13:11Z")

</div>

> <https://github.com/defold/extension-rive/issues/267>
>
> My project fails to bundle for HTML5 when compiling a \`.rivescene\` file.
> 
> \*\*Vers…ions\*\*
> 
> \- Defold: 1.14.0 stable
> \- Editor and engine SHA1: \`d295ed4edff2e49072719835713e625f409849f1\`
> \- Rive extension: 13.2.2
> \- OS: Windows
> \- Target: HTML5
> 
> \*\*Dependency\*\*
> 
> \`\`\`text
> https://github.com/defold/extension-rive/archive/refs/tags/13.2.2.zip
> https://github.com/widgrensit/asobi-defold/archive/main.zip
> https://github.com/defold/extension-websocket/archive/refs/tags/4.1.1.zip
> \`\`\`
> 
> \*\*Error\*\*
> 
> \`\`\`text
> /main/Main board.rivescene
> 'com.google.protobuf.GeneratedMessageV3$Builder com.dynamo.bob.pipeline.RiveSceneBuilder.getSrcBuilder(com.dynamo.bob.fs.IResource)'
> \`\`\`
> 
> Build log:
> 
> \`\`\`text
> 2026-10-25 00:04:54 SEVERE Task 'RiveScene' (\[main/Main board.rivescene, build/default\_html5/assets/rive export/grid\_hackers\_ic.rivc, build/default\_html5/defold-rive/assets/empty.a.texturesetc, build/default\_html5/defold-rive/assets/empty.texturec\]) failed
> \`\`\`
> 
> \*\*Steps taken\*\*
> 
> 1. Fetched libraries again.
> 2. Restarted Defold.
> 3. Rebuilt the project.
> 4. Renamed \`.internal\` and \`build\` so Defold could recreate them, fetched libraries again, and retried the HTML5 bundle.
> 
> The same error persists.
> 
> \*\*Expected behaviour\*\*
> 
> The Rive scene compiles successfully and the HTML5 bundle is created.

My project fails to bundle for HTML5 when compiling a `.rivescene` file.

**Versions**

- Defold: 1.14.0 stable
- Editor and engine SHA1: `d295ed4edff2e49072719835713e625f409849f1`
- Rive extension: 13.2.2
- OS: Windows
- Target: HTML5

**Dependency**

```lua
https://github.com/defold/extension-rive/archive/refs/tags/13.2.2.zip
https://github.com/widgrensit/asobi-defold/archive/main.zip
https://github.com/defold/extension-websocket/archive/refs/tags/4.1.1.zip

```

**Error**

```lua
/main/Main board.rivescene
'com.google.protobuf.GeneratedMessageV3$Builder com.dynamo.bob.pipeline.RiveSceneBuilder.getSrcBuilder(com.dynamo.bob.fs.IResource)'

```

Build log:

```lua
2026-10-25 00:04:54 SEVERE Task 'RiveScene' ([main/Main board.rivescene, build/default_html5/assets/rive export/grid_hackers_ic.rivc, build/default_html5/defold-rive/assets/empty.a.texturesetc, build/default_html5/defold-rive/assets/empty.texturec]) failed

```

**Steps taken**

1. Fetched libraries again.
2. Restarted Defold.
3. Rebuilt the project.
4. Renamed `.internal` and `build` so Defold could recreate them, fetched libraries again, and retried the HTML5 bundle.

The same error persists.

**Expected behaviour**

The Rive scene compiles successfully and the HTML5 bundle is created.