Failed to ping owner of lock for file hash cache fileHashes 2022-02-14 Failed to ping owner of lock for file hash cache fileHashes1find ~/.gradle -type f -name "*.lock" -delete Format a USB-connected drive on the Raspberry Pi in Raspbian /pub.flutter-io.cn/platform-3.0.2/lib/src/interface/local_platform.dart:46:19: Error: Member not found: 'packageRoot'.