System.URIFormat Exception: Invalid URI The hostname could not be parsed

adil 1,206 Reputation points
2022-08-16T07:19:02.17+00:00

Hi In SharePoint 2016 Farm there are many Unexpected errors found in ULS logs of Web Front End Server

What this error means and how to fix these errors.

231402-systemuri-format-exception.png

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SharePoint Server
A family of Microsoft on-premises document management and storage systems.
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SharePoint Server Management
SharePoint Server Management
SharePoint Server: A family of Microsoft on-premises document management and storage systems.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Yi Lu_MSFT 17,451 Reputation points
    2022-08-19T13:05:57.94+00:00

    Hi @adil
    Hope you a good weekend.

    What steps have you taken before you meet these error?

    Here is a similar error message after the user created or extended a web application:
    https://social.technet.microsoft.com/Forums/office/en-US/65aa5ddb-9b1f-4af9-9501-b0a24f9ccb76/error-invalid-uri-the-hostname-could-not-be-parsed-while-creating-or-extending-web-application?forum=sharepointadmin

    In this case, you could check the permissions of the account which you used, you could also check whether you are using a full host name in the bindings in IIS for another web application.

    Thanks,
    Yi Lu


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