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When opening a project in ArcLogistics Desktop, the following error message occurs:
"Unable to open map document; map document has an unknown coordinate system."
The .mxd file for the project has become corrupt.
The project .mxd file can be replaced with an .mxd from a project that is working. The workflow below provides steps to replace the corrupted .mxd file with a working one. This allows the project to be opened.
A new blank project can be made if no other projects are present in the Projects folder.