Consider these steps when needing to install an older version of a Simio application. These steps review how to best handle the Simio application.
- Keep Multiple Versions of Simio Application (Optional)
- Uninstall Current Simio Application
- Download Simio Installer
- Manage Files
- Collaborate
Save off the current version of Simio on your machine. See “How to Keep Multiple Versions of Simio” for more information.
If you try to install a version of a Simio application that is older than the application currently installed on your machine, the installation will fail. You will receive an error that states the current application is newer, so you should not be trying to install an older application.
Before you try to install the older application, you must first uninstall the current Simio application.
Important: You only need to uninstall the current Simio application. Any applications you have copied and saved off to a different folder (as explained in Keep Multiple Versions of Simio Application above) will not be affected.
You can uninstall the current version of Simio by going to “Add or remove programs” on your machine, finding Simio in the program list, and using the ‘Uninstall’ option.
Find the version of Simio you are looking to install on the Download Simio tab.
After downloading the .zip folder, run the Simio installer to install the version of Simio.
After this version of Simio is installed, you can save it off to a folder location as explained in Keep Multiple Versions of Simio Application section above. You can install a newer Simio version over this older version without first uninstalling it. Review How to Move to a Newer Version of Simio for more information.
Helpful Tip: Duplicate and keep a copy of any major project files before opening them in the newer version of Simio.
In case you need to move back to an older version of Simio, you will need the older version of these Simio files. You will not want to save over these files in a newer version of Simio, as that will write the files in newer version.
Important: The newer version files should not be opened in the older version of Simio.
Example: I have been using Simio 15.249. I am now moving to Simio 17.261.
Before I open my file MyProject_249.spfx, I will ensure I have saved a copy of this file. This version of this file will have last been saved in 15.249.
When I open MyProject_249.spfx, I will save a new version of this file as MyProject_261.spfx. This version of this file will have last been saved in 17.261.
If I need to go back to Simio 15.249, I will open the 15.249 application and use the file MyProject_249.spfx. The newer file, MyProject_261.spfx, should not be opened in the 15.249 application.
If you are collaborating on a project with others, you will all need to use the same version of Simio. If you do not have the exact version of Simio they are using, consider downloading it and keeping multiple versions of the Simio application on your computer. See the “1. Keeping Multiple Versions of Simio Application” section above for more information.
If you are not using the same version of Simio when collaborating, you can encounter file compatibility issues. For more information on file compatibility issues, see the Article “Troubleshooting Compatibility Warning Upon Opening Project”.
Additional Resources