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CEF for SOLIDWORKS Error and How to Fix It

The CEF (Chromium Embedded Framework) for SOLIDWORKS is a lightweight browser component that renders web-based UI elements—such as 3DEXPERIENCE add-in panels, login dialogs, and platform widgets—directly within the SOLIDWORKS environment. It installs as a separate Windows application alongside 3DEXPERIENCE and facilitates communication between the local SOLIDWORKS session and cloud-based services. 

 

If you are presented with the error message “3DEXPERIENCE Add-in failed to load because CEF for SOLIDWORKS Application was not found” or 3DEXPERIENCE panels are not loading, login windows not appearing, or blank add-in interfaces, then reinstalling the application may resolve the behavior.  

Viewing CEF Error example with SOLIDWORKS and 3DEXPERIENCE connector

How to reinstall CEF for SOLIDWORKS

  1. Close all SOLIDWORKS sessions.

  2. Check Control Panel > Programs > Programs and Features to see if CEF for SOLIDWORKS Applications is installed. If so, right-click and uninstall the application. If the program does not exist, then simply continue to the next step. 
Viewing CEF for SOLIDWORKS Applications in Uninstall or change a program window
  1. Navigate to where the SOLIDWORKS installation files were downloaded. The default location is C:\Users\<username>\Documents\SOLIDWORKS Downloads\SOLIDWORKS <version>. Step into the swcef folder and double-click the CEF for SOLIDWORKS Applications.msi to run the installer. 
Viewing folder navigation to CEF for SOLIDWORKS Applications
Viewing CEF for SOLIDWORKS Application - InstallShield Wizard confirmation steps
  1. Once finished, verify CEF for SOLIDWORKS Applications is listed in Control Panel > Programs > Programs and Features and then test SOLIDWORKS to verify this resolved the behavior. If this did not resolve the behavior, then contact MLC CAD Systems technical support for guidance. 
Viewing CEF for SOLIDWORKS Applications in Uninstall or change a program window

Technical Support

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