30884: Acronis Backup & Recovery 11: "An error occurred while deserializing the composite value. Object 'Root.second' is not of type 'Composite'" error"

To solve the issue, update all of the product's components to the latest build

This article applies to:

  • Acronis Backup & Recovery 11

Symptoms

  1. You have an Acronis Agent installed from an older build of Acronis Backup & Recovery 11 (Build 17318 or earlier);
  2. At the same time the Acronis Storage Node component has been updated to the latest build (currently, Build 17437);
  3. An attempt to run a backup plan with staging finishes with the following error:

    POR: Property 'SliceUrisResults' processing error has occurred.
    Additional info:
    --------------------
    Error code: 1
    Module: 250
    LineInfo: b28c8ae39d242308
    Fields:
    Message: POR: Property 'SliceUrisResults' processing error has occurred.
    --------------------
    Error code: 26
    Module: 250
    LineInfo: ffec5f99cf86d8ad
    Fields:
    Message: POR: An error occurred while deserializing the composite value. Object 'Root.second' is not of type 'Composite'.

Cause

This is a known issue. The replication part of staging cannot be communicated from an older build of Acronis Agent to the latest build of Acronis Storage Node.

Solution

To have the issue fixed, update all of the product's installed components to the latest build. See Acronis Backup & Recovery 11 Advanced: Updating to Build 17437.

More information

Please contact Acronis Customer Central if you need assistance.

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