# WebGPU error on engine init - Cannot read properties of null (reading ‘getCurrentTexture’)

**URL:** <https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501>\
**Category:** Bugs\
**Created:** [January 24, 2024, 7:03pm UTC](https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501 "2024-01-24T19:03:42Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![SonnyC56](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sonnyc56/32/34522_2.png) [@SonnyC56](https://forum.babylonjs.com/u/SonnyC56)\
**Post date:** [January 24, 2024, 7:03pm UTC](https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501/1 "2024-01-24T19:03:42Z")

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Hey everyone,

I am having a problem when trying to enable webGPU in our platform.

I am doing this to initiate the engine.

> ```
> const engine = !useWebGPU
> ? undefined
> : await Common.triAsync(async () => {
> const eng = new WebGPUEngine(canvas, {
> doNotHandleContextLost: true,
> doNotHandleTouchAction: true,
> deterministicLockstep: true,
> lockstepMaxSteps: 4,
> powerPreference: 'high-performance',
> });
> await eng.initAsync();
> return eng;
> }).getOrElseValue(undefined);
> 
> ```

I get this error when running the code-

> Cannot read properties of null (reading ‘getCurrentTexture’)  
> TypeError: Cannot read properties of null (reading ‘getCurrentTexture’)  
> at WebGPUEngine.\_startMainRenderPass (webpack-internal:///./node\_modules/@babylonjs/core/Engines/webgpuEngine.js:2157:48)  
> at WebGPUEngine.clear (webpack-internal:///./node\_modules/@babylonjs/core/Engines/webgpuEngine.js:996:22)  
> at Scene.\_clear (webpack-internal:///./node\_modules/@babylonjs/core/scene.js:3670:26)  
> at Scene.\_clearFrameBuffer (webpack-internal:///./node\_modules/@babylonjs/core/scene.js:3428:22)  
> at Scene.render (webpack-internal:///./node\_modules/@babylonjs/core/scene.js:3802:14)  
> at eval (webpack-internal:///./src/Client.ts:590:25)  
> at WebGPUEngine.\_renderFrame (webpack-internal:///./node\_modules/@babylonjs/core/Engines/engine.js:811:13)  
> at WebGPUEngine.\_renderLoop (webpack-internal:///./node\_modules/@babylonjs/core/Engines/engine.js:838:26)  
> at \_boundRenderFunction (webpack-internal:///./node\_modules/@babylonjs/core/Engines/thinEngine.js:1251:52)

The error seems to happen when the render loop begins to run.

Any insights into what the issue could be would be very helpful.

Thanks!

---

<div class="post-metadata">

**Author:** ![Evgeni\_Popov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/evgeni_popov/32/4432_2.png) [@Evgeni\_Popov](https://forum.babylonjs.com/u/Evgeni_Popov)\
**Post date:** [January 24, 2024, 9:27pm UTC](https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501/2 "2024-01-24T21:27:19Z")

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You should make sure that `canvas` is really a canvas.

Also, can you just `console.log(eng._context)` after the `await eng.initAsync();` line? Your error means that `this._context` is null, which should not happen (and in this case, you should have received an error before reaching this line…).

---

<div class="post-metadata">

**Author:** ![SonnyC56](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sonnyc56/32/34522_2.png) [@SonnyC56](https://forum.babylonjs.com/u/SonnyC56)\
**Post date:** [January 24, 2024, 10:15pm UTC](https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501/3 "2024-01-24T22:15:46Z")

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Okay, you are right, I missed some errors the first time.

These show up first.

> Client.ts:308 BJS - [17:11:42]: Can not create WebGPU Device and/or context.  
> Client.ts:308 BJS - [17:11:42]: TypeError: Cannot read properties of null (reading ‘configure’)

I checked, and the canvas is there but **eng.\_context** is **null** after **eng.initAsync()** is executed.

WebGPU works in chrome on my machine, confirmed with this playground - [https://playground.babylonjs.com/?webgpu#1F17BQ#113](https://playground.babylonjs.com/?webgpu#1F17BQ#113)

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<div class="post-metadata">

**Author:** ![Evgeni\_Popov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/evgeni_popov/32/4432_2.png) [@Evgeni\_Popov](https://forum.babylonjs.com/u/Evgeni_Popov)\
**Post date:** [January 25, 2024, 12:29am UTC](https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501/4 "2024-01-25T00:29:07Z")

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I think the canvas you pass to the engine is not ok. Try to console.log it and see if it’s ok. You could also try to do `canvas.getContext("webgpu")` for testing purpose, just to see if you get an error or not.

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<div class="post-metadata">

**Author:** ![SonnyC56](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sonnyc56/32/34522_2.png) [@SonnyC56](https://forum.babylonjs.com/u/SonnyC56)\
**Post date:** [January 25, 2024, 3:47pm UTC](https://forum.babylonjs.com/t/webgpu-error-on-engine-init-cannot-read-properties-of-null-reading-getcurrenttexture/47501/5 "2024-01-25T15:47:43Z")

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The same canvas works for a normal WebGL engine, but I will log it soon and post the results. Thank you for your help.