Error at the step 3. Open and test the Example Scene of Add background music in Essentials of real-time audio tutorial.

I followed up the “Essentials of real-time audio” tutorial. But I can’t resolve the error.
After step 2, I double-click the EssentialsAudioScene to open the example scene. Then below issues were appeared. How can I fix these errors?

Error(53) ‘Packages/com.unity.shadergraph/Editor/Generation/Templates/BuildSurfaceDescriptionInputs.template.hlsl.meta’
We can’t assign a new GUID because the asset is in an immutable folder. The asset will be ignored.
‘Packages/com.unity.shadergraph/Editor/Generation/Templates/BuildVertexDescriptionInputs.template.hlsl.meta’
We can’t assign a new GUID because the asset is in an immutable folder. The asset will be ignored.

Library\PackageCache\com.unity.render-pipelines.universal@7.3.1\Editor\ShaderGraph\SubShaders\UniversalPBRSubShader.cs(9,7): error CS0246: The type or namespace name ‘Data’ could not be found (are you missing a using directive or an assembly reference?)
Library\PackageCache\com.unity.render-pipelines.universal@7.3.1\Editor\ShaderGraph\SubShaders\UniversalSpriteLitSubShader.cs(8,7): error CS0246: The type or namespace name ‘Data’ could not be found (are you missing a using directive or an assembly reference?)

‘ShaderGenerator’ could not be found (are you missing a using directive or an assembly reference?)

I updated Universal RP to version 10.6.0
Updated visual studio to latest 16.11.4
Restarted unity and visual studio
Then it worked for me