a question about assetbundle?

I make a untiy3d file by BuildPipeline. When load it , unity send a error message : “Level AdditiveScene couldn’t be loaded because it is not added to the build settings.
To add a level to the build settings use the menu File->Build Settings…”.
I and the level into bulid settings but not fix.and the sample do not add any level into bulid settings.
Can you help me?

asset bundles are a unity pro only feature and you build it through the asset bundle build capabilities, not through building players

Hi!thank you for your help,but I want build a scene not a asset.Can you tell me more message ?

Thank you ! I fund the matter. our Artist create the level is not unity pro version.