error de synchronization de repository: el file de object está vacío

Intento sincronizar Android desde un repository de git pero sigo recibiendo los siguientes errores:

error: object file /home/build/android-7-docker/android7/.repo/projects/packages/providers/BlockedNumberProvider.git/objects/3e/182f346bd88df9de1082714c9d0fe0886571f4 is empty error: object file /home/build/android-7-docker/android7/.repo/projects/packages/providers/BlockedNumberProvider.git/objects/3e/182f346bd88df9de1082714c9d0fe0886571f4 is empty fatal: loose object 3e182f346bd88df9de1082714c9d0fe0886571f4 (stonetworking in /home/build/android-7-docker/android7/.repo/projects/packages/providers/BlockedNumberProvider.git/objects/3e/182f346bd88df9de1082714c9d0fe0886571f4) is corrupt fatal: The remote end hung up unexpectedly error: object file /home/build/android-7-docker/android7/.repo/projects/developers/samples/android.git/objects/54/1590183e5d796cc3c4a40fad185ea23efd9986 is empty error: object file /home/build/android-7-docker/android7/.repo/projects/developers/samples/android.git/objects/54/1590183e5d796cc3c4a40fad185ea23efd9986 is empty fatal: loose object 541590183e5d796cc3c4a40fad185ea23efd9986 (stonetworking in /home/build/android-7-docker/android7/.repo/projects/developers/samples/android.git/objects/54/1590183e5d796cc3c4a40fad185ea23efd9986) is corrupt fatal: The remote end hung up unexpectedly error: refs/remotes/aosp/master does not point to a valid object! error: object file /home/build/android-7-docker/android7/.repo/projects/packages/providers/BlockedNumberProvider.git/objects/3e/182f346bd88df9de1082714c9d0fe0886571f4 is empty error: object file /home/build/android-7-docker/android7/.repo/projects/packages/providers/BlockedNumberProvider.git/objects/3e/182f346bd88df9de1082714c9d0fe0886571f4 is empty fatal: loose object 3e182f346bd88df9de1082714c9d0fe0886571f4 (stonetworking in /home/build/android-7-docker/android7/.repo/projects/packages/providers/BlockedNumberProvider.git/objects/3e/182f346bd88df9de1082714c9d0fe0886571f4) is corrupt fatal: The remote end hung up unexpectedly error: object file /home/build/android-7-docker/android7/.repo/projects/developers/samples/android.git/objects/54/1590183e5d796cc3c4a40fad185ea23efd9986 is empty error: object file /home/build/android-7-docker/android7/.repo/projects/developers/samples/android.git/objects/54/1590183e5d796cc3c4a40fad185ea23efd9986 is empty fatal: loose object 541590183e5d796cc3c4a40fad185ea23efd9986 (stonetworking in /home/build/android-7-docker/android7/.repo/projects/developers/samples/android.git/objects/54/1590183e5d796cc3c4a40fad185ea23efd9986) is corrupt fatal: The remote end hung up unexpectedly error: Cannot fetch platform/packages/providers/BlockedNumberProvider Fetching projects platform/external/libutf/ Fetching projects: 14% (74/522) error: Cannot fetch platform/developers/samples/android error: Exited sync due to fetch errors 

¿Cómo puedo arreglar esto? ¿Alguna idea de cómo proceder en este caso particular? ¡Gracias por adelantado!