PyMOL - LoadLibrary failed with error 87: The parameter is incorrect

End-Users

If you have ran into the the error that "LoadLibrary failed with error 87: The parameter is incorrect (Image below), you're most likely experiencing an issue with the graphics driver.

LoadLibrary failed with error 87: The parameter is incorrect" or spinning cursor when launching Autodesk product in Remote Desktop or Terminal Services session

Step 1. Reboot your device. If this does not resolve the issue, submit a ticket with the Service Desk using the following link:

https://fsumed.teamdynamix.com/TDClient/2884/Portal/Requests/TicketRequests/NewForm?ID=ipXvcZebyOU_&RequestorType=Service

 

Service Desk

If a customer is experiencing the error shown in the above section, this is most likely a graphics driver issue. Use the following steps to resolve this issue:

  1. Go to Start and type Computer Management
    1. Run as Administrator
      1. SCCM - Use LAPS
      2. Intune - Use EP-WS account
    2. Reference picture below: ​​​​​​​

Uploaded image

  1. Computer Management as opened
    1. Go down to Device Manager on the left-hand side
      1. Select Device Manager
        1. If not in Administrator mode you will get an error.
      2. Go to Display adapters
        1. Select Graphics Driver
      3. Reference picture below:

Uploaded image

  1. Use the listed name of the Graphics Card in as shown in picture above (Note this is an example, and may differ per device type)
    1. Go to manufacturer site and download latest drivers
    2. Go to Downloads folder
    3. Install latest driver
  2. Once the latest version of the drivers have been installed attempt to open PyMOL again.
    1. If the error does not come back, you have resolved the issue.
    2. If it does, reboot and open again.
Print Article