LoadLibrary failed with error 87: The parameter is incorrect

Last Published: April 25, 2020

Error Message

When opening or creating a project or map document in ArcGIS Pro or ArcMap, the following error message is returned:

LoadLibrary failed with error 87: The parameter is incorrect.
Image of the error message


This issue occurs due to the machine's graphics card configuration.

  • The graphics card driver is out-of-date.
  • There are conflicting graphics cards in the machine.
  • If using Remote Desktop Protocol (RDP) to connect to a remote machine, there could be a conflict between the video card specified by the RDP connection, and the one used by ArcMap on the remote machine. RDP is connecting by default to a built-in Intel video card, and not the video card used by ArcMap.

Solution or Workaround

Depending on the cause, either:

Article ID:000020069

  • ArcMap
  • ArcGIS Pro

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