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I’ve taken on a task to update a few things with one of our SharePoint on-premise sites. I happened to notice that they are using a very old version of DFFS (v2.95) and I’d like to try and convert them over to the latest version.
Do you have any good tips, documents or even best practices/advice for the best approach in migrating from such an older version a more current one?
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I created a UAT space and added the new DFFS items. When I try to install DFFS onto the forms of the UAT list I get an error message: Failed to add the DFFS WebPart(s) to “form name” The file you imported is not valid. Verify that the file is a Web Part description file (.webpart or .Dwp) that contains well-formed xml.
Not sure how to proceed. I pointed the loader file to DFFS which is in SPJS doc library.
I also don’t have any data in the UAT list yet.
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Ensure the Content Editor Web Part is accessible in the site and that scripting capabilities are turned on – see this post for reference: https://spjsblog.com/2021/11/03/enable-scripting-in-a-sharepoint-site-collection-using-powershell/
Alexander
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I haven’t seen this error before. Can you try downloading the latest version and replacing your DFFS folder and try again?
If that does not work you can add the CEWP manually by editing the NewForm.aspx, DispForm.aspx and EditForm.aspx pages – edit a working form in another page and look at the CEWP added above and below the main web part and replicate the same CEWP with the correct Content Link to the DFFS loader and the DFFS overlay.
Alexander
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I’m getting close. I reuploaded DFFS back in to the SPJS folder which didn’t change the error. So then I took the bottom and top CEWPs from a working list on another site, exported them out and imported them into the troubled list. I updated the links on each pointed to the specified locations. It now brings up the updated DFFS edit version link at the bottom of the form but when I select it I’m presented with an error at the top of the page and can’t go any farther.
The site is a subsite and the SPJS folder is in that subsite. Should I put it on the main site and reference from there?
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I have never had any reporting a similar problem so I’m not sure what causes this, but open the dev tools (F12 > Console) and look at any errors there to see if it might give some clues.
If you can email me some screenshots of your list / CEWP I can take a look and see if I see anything out of the ordinary.
Alexander
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