To active driverkit on big sur(11.1) with error.

[xaqfan]

I have applied for the system extension driverkit permission ,and I have checked out code.
Then i change it's bundle id .
But ,it report error.
function is called ：
func request(_ request: OSSystemExtensionRequest, didFailWithError error: Error) {
os_log("sys extension didFailWithError description -%@", error.localizedDescription)
}
log is:
sys extension didFailWithError description -

Please !