Go to the Links panel and with the file selected, choose Embed Image from the flyout menu. Then you can make a Symbol and do the Perspective.
Sorry, You"ll need to remake the icon in AI as a vector object.
Ok wait what? am I remaking this or embedding it?
And if so why? its coming from an AI file into another AI file its all vector art.
I dont understand this
It is non naive art correct it is linked. That is what the message is telling you if you follow the instruction you will learn something as we all are and you will be able to get on with your work.
Wait a second can you show us a screen shot of the art and the layers and appearance panel.
You say it is all vector?
That would be strange
As mentioned in the error dialog, Symbol containing any Raster effects such as Drop Shadow, Inner Glow etc could not be brough into perspective. I doubt there is a Inner Glow and Drop Shadow applied to the vector in the symbol (atleast in screen shot it appears like that). So as suggested in the error dialog try expanding the symbol and bring the resultant group in to Perspective