After making changes in a 
  Revit local file, you cannot save or synchronize. 
 
  Issue: Families in the model may be corrupt preventing the local model from synchronizing with the central model. 
 
  Solution: To find the corrupt family, do the following: 
 
- Ensure everyone is updated to 
	 the latest build. 
  
 
- Open the project with the Audit check box selected. 
	 
 
	 -  
		  If the model will not open with the audit option, perform the steps in 
		  Cannot Open a Model Using Audit. When you are able to audit the model, proceed with the next step. 
		
 
 
	  
 
   
- Open the latest 
	 journal file, and look for lines similar to the following: 
	 
-  ' 3:< [Family Name], LoadedId = [Element#], GUID = 6ec8b336-60db-4ece-84d9-f9ff6da57711, refers to a 
		  NON_EXISTENT_CONTENT_DOC. Please reload! 
		
 
 
   
- For any families identified in the journal file, reload the associated families from a backup library or a family library. 
  
 
 
 
Note: When reloading families, use the Load Family command, or open the family and use Load into Project. Avoid right-clicking on the family in the Project Browser and selecting Reload. 
 If there are a large number of families to re-load you could use the following steps to more quickly reload them: 
 
- Find uncorrupt copies of the affected files (these could be from a family library or from a different project file). (To save families from a project use the Save As -> Library -> Family.) 
  
 
- Create a separate folder to place the families that need to be reloaded. 
  
 
- Place a copy of the families that need to be reloaded into the folder. 
  
 
- Open the 
	 Revit model. 
  
 
- Drag all of the families from the folder into the project window. 
  
 
- When prompted to overwrite the first family, check the box "Do this for all loading families". (If prompted regarding overwriting again, check this box again.) 
  
 
- If you encounter errors/warnings when reloading the families do the following: 
	 
 
	 - Identify the particular families that are leading to an error/warning. 
		  
 
		  
The message may appear immediately after you click the Overwrite option for the family, or it may appear after reloading a few families of the same category. 
		 
- Reload the families that do not lead to an error/warning. 
		
 
- For each family that show an error/warning, reload it as follows: In the Project Browser, right-click on the family, and click Reload. Select the family file and click OK. 
		  
If this doesn't work, open the Family Editor, and use the Load into Project command.