Revit Error Too many elements , revit 2016 to 2019.1

[roger8YAR9]

For the past 5 years our office has been struggling with these errors, losing time and information.

and all the solutions presented are only temporary. working on large files from 250MB up 900MB,

cleaning , auditing , workshare monitoring, updating and we still sit with this problem.

Does anyone know the cause of the loss of information ?

-can it be Windows 8.1 .net error  ?

- users syncing obsessively or to infrequently?

-working on the same workset and / or object ?

-could int be the back ups in the background   on windows server ?

- corrupted imported links , RVT ,DWG etc.?

-Corrupted Families?

-Network error ?

-Domain Error?

-License_Error?

This Problem doesn't seem to end is there anyone that has a solution?

[Anonymous]

Can you elaborate on what your problem is - are you referring to 'Too many missing elements'?

The one thing that you don't seem to list with the possible causes is hardware.  If you have such large Revit files you will need some good hardware.

[Matt__W]

Are you saying you see the message when upgrading a model from 2016 to 2019? Or are you seeing this message in multiple models in versions 2016 to 2019?

If it's when upgrading the models, try the following process to search for, and correct, any corrupt families within your project model.

1. Open a COPY of the original model
2. Save out the families. When Revit finds one that's corrupt, it will crash.
   https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2016/EN...
3. Make note of the family that crashed Revit (the last family will be visible on the status bar in the lower-left corner)
4. Close Revit
5. Reopen Revit
6. Open the central model from step 1.
7. Delete the corrupt family from step 3.
8. Save the model
9. Repeat steps 2-8
10. Repeat until Revit doesn't crash while saving the families.
11. Get clean copies of the original families and reload them into the ORIGINAL model and overwrite the existing families.

It's essentially the same process as outlined in the Solution section of this AKN article.

Below are a few links to some additional resources to help troubleshoot a corrupt Revit model.

Autodesk University 2017 - BLD125158 - Code Blue Dr Revit - How to Resuscitate Corrupt Revit Models Presentation
http://bit.ly/2BQ38qe Watch it at au.autodesk.com

Handout from my co-presentation and Datasets
https://1drv.ms/f/s!AmO3IjYenWEdhPYvoPS5MKqY9aSjeQ

But if the message is appearing in multiple models and multiple versions of Revit, then have a look at the following AKN for information on preventing data corruption in your models.

BEST PRACTICES: PREVENTING DATA CORRUPTION IN REVIT
https://help.autodesk.com/view/RVT/2020/ENU/?guid=GUID-CE42D9A5-A1F9-47D0-9F25-B338DC74AC38

[roger8YAR9]

What i was saying that it is a recurring problem since 2016 to  current, I'll work through your suggestions thank you .