Unity 2019.3 'AssetDatabaseExperimental' does not contain a definition for 'IsAssetImportWorkerProce

Hi,

I just upgraded to 2019.3.0b3 and get the following error message:
Library\PackageCache\com.unity.ide.rider@1.1.4\Rider\Editor\RiderScriptEditor.cs(385,65): error CS0117: 'AssetDatabaseExperimental' does not contain a definition for 'IsAssetImportWorkerProcess'
in the Editor.

I deleted The folder "Library\PackageCache\com.unity.ide.rider@1.1.4" but it is recreated when I start Unity.

Looks like the error is in RiderScriptEditor

Code (CSharp):

1.     private static bool IsAssetImportWorkerProcess()
2.     {
3. #if UNITY_2019_3_OR_NEWER
4.       return UnityEditor.Experimental.AssetDatabaseExperimental.IsAssetImportWorkerProcess();
5. #else
6.       return false;
7. #endif
8.     }

What's wrong?

Edit 1: Uninstalling the Rider Editor package or switching to another one seems to lead to more error messages when playing the game.
Edit 2: Downgrading Unity back to 2019.3.0f1 seems to resolve the error...

Thanks
Nico

 

i meet the same issue and don't how to resolve...

 

You can remove RIDER package from "package manager" in Unity.
This is solve it problem