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Cannot edit App Control Signatures, "Error: property 'value' can't be empty value"

11/25/2021 2 People found this article helpful 73,708 Views

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    Description

    This article describes how to resolve "Error: property 'value' can't be empty value (null, 0, false, 0.0.0.0, "", ...)" when editing a signature in App Control.

    Resolution

    After migrating settings from a Gen6 device to a Gen7 device, sometimes when editing the signatures in App Control, it results in  "Error: property 'value' can't be empty value (null, 0, false, 0.0.0.0, "", ...)". Hence the signature cannot be edited.


                Image


    If you are not able to edit some signatures :

    1. Navigate to POLICY | Security Services | App Control > Signatures.
    2. Click the Configure Icon on the signature that you want to edit.
    3. Under Log Redundancy Filter (seconds), you will see the value grayed out and set to "undefined".

      Image
    4. Disable the Log Redundancy Filter (seconds) and Set Value to 60.

      Image

    5. Enable the Log Redundancy Filter (seconds) back, you will see now instead of undefined, it says 60.

      Image

    6. Now edit the signature as per requirement and click OK.




    If you are not able to edit all the signatures :


    1. Navigate to POLICY | Security Services | App Control  > Status/Settings
    2. Click RESET.

      Image

      CAUTION:
      This will Reset all the configurations of App Control and set all the values to default. If you want to avoid resetting the App Control Settings, then change each signature manually as shows above that has "undefined" value.


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    Categories

    • Firewalls > TZ Series
    • Firewalls > NSa Series

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