Sounds like a pretty clearly-worded error to me, but I cannot say any more because you posted zero code.
How to report your problem productively in the Unity3D forums:
When you post code, please use code tags: Using code tags properly
Sounds like a pretty clearly-worded error to me, but I cannot say any more because you posted zero code.
How to report your problem productively in the Unity3D forums:
When you post code, please use code tags: Using code tags properly