B1X0002: A help project file must be specified and it must exist

Error B1X0002: A help project file must be specified and it must exist

This error occurs if the HelpProjectName property on the Build1xHelpFile build task has not been set, is set to an empty string, or refers to a file that does not exist.

Specify a valid file that exists for the HelpProjectName property on the Build1xHelpFile build task in the project file.

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