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Forums / General Discussions / Problem of Upgrade to 4.1

Problem of Upgrade to 4.1

3 posts, 0 answered
  1. Eugene Gvozdarev
    Eugene Gvozdarev avatar
    10 posts
    Registered:
    06 Jan 2010
    22 Apr 2011
    Link to this post
    Good day!

    I've tried to upgrade 4.0 SP1 to 4.1 via Project Manager. But at the end of upgrade process i have error:
    NullReferenceException
    Please see full error message in attachment.

    Could you please say why it happens? What does it mean? How I can fix it?

    Thanks,

    Eugene
  2. Eugene Gvozdarev
    Eugene Gvozdarev avatar
    10 posts
    Registered:
    06 Jan 2010
    27 Apr 2011
    Link to this post
    Any Ideas?
  3. Pepi
    Pepi avatar
    981 posts
    Registered:
    31 Jan 2017
    28 Apr 2011
    Link to this post
    Hi Eugene Gvozdarev,

    It seems your Project.xml file could not be updated automatically for some reason. Is the file saved on the Desktop? To solve the issue, open Project.xml manually through Visual Studio (or some other editor) and set the proper version of the upgraded project. For example:

    <projects>
      <project id="6B48561E-A1B6-41B2-9AD2-4B6D880CC1CE" Name="Education_Sandbox" BrowseUrl="Click Browse to resolve" SfVersion="4.1.1339.0" DateCreated="04/15/2011 10:12:06">
        <Location Type="FileSystem" Url="C:\Users\pivanova\Desktop\Projects\Education_Sandbox" LocalPath="C:\Users\pivanova\Desktop\Projects\Education_Sandbox" />
      </project>
    </projects>

    Then, you could open Project Manager and browse the site.

    Let us know if this helps.

    Regards,
    Pepi
    the Telerik team

3 posts, 0 answered