Play Asset Delivery Error Code does not match

[TTianshun]

I build the app-bundle-sample and did both internal test and local test, but the RequestInfo and RequestDownload always returns NO_ERROR. I tested it with insufficient storage and network disconnected and call RequestInfo with incorrect asset names, but it always returns NO_ERROR and the download didn't begin.
Then I use adb logcat to see the logs. I found logs like:
09-25 14:57:05.654 11855 11871 I PlayCore: UID: [10147] PID: [11855] AssetPackServiceImpl : onError(-10)
Apparently play core API triggered the error code. But it still returns NO_ERROR.

[TTianshun]

Sorry to bother, I made a mistake.