Qt 3D Failed to build graphics pipeline

I have Ubuntu 20.04 and Qt6.4.2. When I try to run Qt3D example Basics Shapes it shows the error:

Qt3D.Renderer.RHI.Backend: Initializing RHI with OpenGL backend
No GLSL shader code found (versions tried:  QList(130, 120) ) in baked shader QShader(stage=0 shaders=QList(ShaderKey(1 Version(300 QFlags()) 0)) desc.isValid=true)
No GLSL shader code found (versions tried:  QList(130, 120) ) in baked shader QShader(stage=4 shaders=QList(ShaderKey(1 Version(300 QFlags()) 0)) desc.isValid=true)
No GLSL shader code found (versions tried:  QList(130, 120) ) in baked shader QShader(stage=0 shaders=QList(ShaderKey(1 Version(300 QFlags()) 0)) desc.isValid=true)
Qt3D.Renderer.RHI.Backend: Failed to build graphics pipeline: Creation Failed

What does it mean?

UPDATED:

Output of "glxinfo -B | less":

name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2) (0x166)
    Version: 21.2.6
    Accelerated: yes
    Video memory: 1536MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.2
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.0
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2)
OpenGL core profile version string: 4.2 (Core Profile) Mesa 21.2.6
OpenGL core profile shading language version string: 4.20
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 21.2.6
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.0 Mesa 21.2.6
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00

Solution

First of all, I test that Example in Qt 6.4.0 and Qt 6.2.3. and for this test, I use NVIDIA GPU and my Intel.

This is my Intel config

and as I run that Example in Qt 6.4.0 I got the same error you got.

But As I change my GPU to NVIDIA, it works correctly!

I test that program with Qt 6.2.3 and Intel GPU and it runs and works correctly!