Can't open Revit 2017 file in Revit LT 2017

[Anonymous]

Hi All, We need some help. When trying to open a Revit 2017 file in Revit LT 2017 we get this message: "Project Cannot be opened in Revit LT because it was last saved in a version of Revit prior to 8.1" and the file doesn't open.... I used to have Revit 2016 and Revit LT 2016 before and never had issues with interoperability, any idea of why it may be happening? Appreciate your help, Cecilia.

[ToanDN]

Can you share the file?

[Anonymous]

Make sure all the service packs have been applied...There have been a couple of them.

[Anonymous]

Hi ToanDN, sorry for taking so long..I was in sick leave.. this is the Revit 2017 file which I did in my home computer which is a Windows Ultimate 10. Then I tried to open this file at work using Revit LT 2017 but I couldn't. I get the message:"Project Cannot be opened in Revit LT because it was last saved in a version of Revit prior to 8.1"

The computer at work is also Windows 10 but pro. 

[Anonymous]

I will check the service packs. Thank you mpwuzhere.

[ToanDN]

The file is fine.  You just need to update LT to the latest SP.

[Anonymous]

Will do the update to see how it goes. Thank you ToanDN

[Viveka_CD · Accepted solution]

Hi @Anonymous

• The error message for files created by a later version format is not related to this error code ("file cannot be opened in Revit LT because it was last saved in a version of Revit prior to 8.1.")...This error code appears to be a Revit LT issue. It happens to appear when one tries to open (on LT) an older file format created by a full Revit version.
• Programming functionality has changed with 8.X  LT just could not read the code from 8.1 and prior because few elements of core program was reorganized.  

SOLUTION:

You can always download a demo of the full version, and update the files, so it can be read in the current version of Revit LT.Use the demo to convert the old files / save on the trial version then reopen with Revit LT. Try and let me know if this works.

Your file works fine for now. Update the service packs - link HERE

Please select"Accept as Solution" if it answers your question and benefit other users looking for similar solutions. Kudos gladly accepted.

[Anonymous]

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@Viveka_CD wrote:

Hi @Anonymous

• The error message for files created by a later version format is not related to this error code ("file cannot be opened in Revit LT because it was last saved in a version of Revit prior to 8.1.")...This error code appears to be a Revit LT issue. It happens to appear when one tries to open (on LT) an older file format created by a full Revit version.
• Programming functionality has changed with 8.X  LT just could not read the code from 8.1 and prior because few elements of core program was reorganized.  

SOLUTION:

You can always download a demo of the full version, and update the files, so it can be read in the current version of Revit LT.Use the demo to convert the old files / save on the trial version then reopen with Revit LT. Try and let me know if this works.

Your file works fine for now. Update the service packs - link HERE

Please select"Accept as Solution" if it answers your question and benefit other users looking for similar solutions. Kudos gladly accepted.

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Did you totally miss the part that the OP says they have 2017 for both versions of Revit?  It's a update/service pack issue.  The solution is to make sure both versions have the same service packs installed.

[Viveka_CD]

@Anonymous

The service pack upgrade link is provided in the previous post as well.