CS0234 Error

Unity Engine
, ,
1

Does somebody know what how to solve this? Thank you.

Assets\Samples\Scriptable Render Pipeline Core\17.3.0\Common\Scripts\InstallPackage.cs(2,19): error CS0234: The type or namespace name ‘PackageManager’ does not exist in the namespace ‘UnityEditor’ (are you missing an assembly reference?)

Assets\Samples\Scriptable Render Pipeline Core\17.3.0\Common\Scripts\InstallPackage.cs(3,19): error CS0234: The type or namespace name ‘PackageManager’ does not exist in the namespace ‘UnityEditor’ (are you missing an assembly reference?)

2

You use samples for another version of Unity:

urp
urp670×332 12.7 KB

Try to update URP to 17.4 and install the correct samples.

Try to delete the Library folder.

3

But I have version 17.4.0. installed.

Screenshot 2026-04-12 214613
Screenshot 2026-04-12 214613466×518 54 KB

4

Scriptable Render Pipeline Core package doesn’t have samples tab in 17.4.

Universal Render Pipeline ⁣has it, when you install samples from it, it will have the correct version of samples 17.4 and not 17.3.

1
11078×1044 106 KB

2
2520×384 16.5 KB

5

I see.

It’s even a bigger mess now:

Screenshot 2026-04-12 215817
Screenshot 2026-04-12 215817402×358 25.1 KB

image
image1632×196 57.7 KB

6
  1. Delete 17.3.
  2. Close Unity.
  3. Try to delete the Library folder.
  4. Open Unity.

Why do you need samples? It is optional.

7

“Optional” – It seems otherwise from here :slight_smile: I have no idea where it came from.

I got rid of this one, thank you.

It gives me a few new errors :see_no_evil_monkey:

Screenshot 2026-04-12 220656
Screenshot 2026-04-12 2206561774×145 47.1 KB

8

Then delete all the samples.

9

Now I have CS0246

Assets\Samples\Scriptable Render Pipeline Core\17.4.0\RendererShaderUserValue_Common\Scripts\VertexAnimationTextureBaker.cs(10,44): error CS0246: The type or namespace name ‘EditorWindow’ could not be found (are you missing a using directive or an assembly reference?)

Assets\Samples\Scriptable Render Pipeline Core\17.4.0\RendererShaderUserValue_Common\Scripts\VertexAnimationTextureBaker.cs(16,6): error CS0246: The type or namespace name ‘MenuItemAttribute’ could not be found (are you missing a using directive or an assembly reference?)

Assets\Samples\Scriptable Render Pipeline Core\17.4.0\RendererShaderUserValue_Common\Scripts\VertexAnimationTextureBaker.cs(16,6): error CS0246: The type or namespace name ‘MenuItem’ could not be found (are you missing a using directive or an assembly reference?)

10

It’s still the folder of samples.

11

I see now! I am sorry. If I read the path properly I would see it straight.

It’s gone, 0 errors, and my game in version 0.1 is ready to go :slightly_smiling_face:

Thank you very much for your patience and for your help.