With SketchUp Pro 2019, we have made some changes to how we execute Auto-saves. Let’s go over Saves, Backups, and Auto-saves with SketchUp to make sure there’s a good understanding.
Save - When you save a SketchUp model, you are saving a .skp file. This file contains everything used to make your model, from geometry to components and materials. It’s all in there. If you have a bunch of really large images or textures in your model, they will be there too AND they will impact the size of your .skp file. It’s possible to build an entire city block in a 4MB file just as it’s possible to have a model of a picture frame with a 20MB photo in it. It’s going to be a 20-something-megabyte .skp file. If you have experimented with a large number of textures, styles, or components consider using the “Purge Unused” feature before you save. It can make for significant space saving. To prevent errors while saving a SketchUp Pro 2019 file be sure to heed the following suggestions:
- Keep the total length of the file name and path to less than 255 characters in length when possible
- Stick with English printable characters for your file names and paths. Generally speaking, use English letters and numbers but avoid reserved characters like / \ : * ? " < > |%
- Load and Save your SketchUp files from your local hard drive and not from a network drive or cloud service to avoid corruption or locked file permissions
Backup - Backups are duplicate model files and are saved by default. In your SketchUp Preferences, under General, you should see a checkbox under both “Create backup” and “Auto-save”. A backup file is triggered during subsequent Save events, after your initial save. They will appear in the same folder as your .skp file, but will have a slightly different name. On Windows, you’ll see them as a .skb (for backup) file and on a Mac, you will see the file name with a tilde at the end like Filename~.skp
Recovered Files - While you are actively working, by default, a Recovered file is saved every 5 minutes. This file should be useful in the event of a crash. The Recovered File is now saved in a different location than it was in previous versions of SketchUp. To find and open a recovered file, open the “Welcome to SketchUp” window, select the Files tab, and select the file you want to recover from the Recent list. This Recovered file will have the same name as the file you are working on and can normally be found in C:\Users\UserName\AppData\Local\Temp\SKETCHUP on a Windows system. On a Mac, its location varies depending on the user. It will be in a /var/folders path that includes SKETCHUP/RecoveredFiles. With a successful save, the Recovered file will eventually be erased during normal system maintenance.
UPDATE April 9th
Since first posting this back on Feb 21st we (you and SketchUp) had discovered new information, a bug, and have incorporated a fix into a new maintenance release. One of the biggest changes is:
● Fixed an issue where auto-save files did not persist on the Mac after a reboot or shutdown.
○ On Windows, recovered files are now saved here:
○ On the Mac, recovered files are now saved here:
The new release is now available for download from the normal locations. The release notes can be found here.