Bug / Crash The referenced script (Obi.BurstColliderWorld) on this Behaviour is missing! [solved]

[Emn90]

I can not see anything!

but the following warning!

Code:

The referenced script (Obi.BurstColliderWorld) on this Behaviour is missing!
The referenced script on this Behaviour (Game Object 'BurstCollisionWorld') is missing!

https://drive.google.com/file/d/1s7GTaoO...sp=sharing

my infos

Code:

{
            "name": "com.unity.render-pipelines.universal",
            "expression": "7.4.1",
            "define": "SRP_UNIVERSAL"
        },
        {
            "name": "com.unity.collections",
            "expression": "0.8.0-preview.5",
            "define": "OBI_COLLECTIONS"
        },
        {
            "name": "com.unity.burst",
            "expression": "1.2.3-verified",
            "define": "OBI_BURST"
        },
        {
            "name": "com.unity.mathematics",
            "expression": "1.0.1",
            "define": "OBI_MATHEMATICS"
        }

I think something is not recognized correctly in the define 
https://drive.google.com/file/d/1B_U4kZV...sp=sharing

and I checked out that page!
http://obi.virtualmethodstudio.com/forum...age-2.html
but haven't found a solution!