Error when opening MicroStation "MDL loader: Could not load application mcm.ma"


 Product:MicroStation
 Version:CONNECT
 Environment:N\A
 Area:ProjectWise Integration
 Subarea:N\A

Problem

Error message displaying when opening DGN file from ProjectWise

Solution

An error message of this nature is usually related to the Integration of ProjectWise Explorer Client with the current installation of MicroStation.

One method to resolve this error would be by uninstalling and reinstalling ProjectWise Explorer.  This seems to repair the integration problem between the two products.

Another would be by Disabling ProjectWise Integration however, this would prevent access to files/standards in the ProjectWise environment.

To ensure MicroStation and ProjectWise work smoothly together, it is advisable to ensure the version of MicroStation you are running is compatible with the version of ProjectWise you are running according to the ProjectWise Support Matrix here.
For instance, if your ProjectWise version is 10.00.03.434, then you would need to run MicroStation CONNECT Edition versions 10.13.01.01, 10.14.02.01, 10.15.02.11, or 10.16.01.56 

See also

MDL Loader error when launching OpenRoads Designer from ProjectWise

Error cannot load mcm dll when launching dgn from ProjectWise

ProjectWise Version Support Matrix

Other language sources

 Original Author:Andrew Bell