Running "flutter pub get" HTTP error 404: Not Found

[549064368]

Running "flutter pub get" in data_collector...
HTTP error 404: Not Found
package:pub/src/http.dart 234:5 _ThrowingClient.send
===== asynchronous gap ===========================
package:pub/src/http.dart 382:18 _ThrottleClient.send
===== asynchronous gap ===========================
package:pub/src/source/hosted.dart 637:22 BoundHostedSource._download.
===== asynchronous gap ===========================
package:pub/src/io.dart 799:12 withTempDir
===== asynchronous gap ===========================
package:pub/src/source/hosted.dart 634:5 BoundHostedSource._download
===== asynchronous gap ===========================
package:pub/src/source/hosted.dart 478:7 BoundHostedSource.downloadToSystemCache
===== asynchronous gap ===========================
package:pub/src/entrypoint.dart 451:35 Entrypoint._get.
===== asynchronous gap ===========================
package:pub/src/entrypoint.dart 446:12 Entrypoint._get
===== asynchronous gap ===========================
package:pub/src/entrypoint.dart 269:7 Entrypoint.acquireDependencies
This is an unexpected error. Please run

dart pub --trace get --no-precompile