This is an error from Microsoft Project. While cryptic and uninformative, it means that Project has stopped allowing Analyzer to communicate with it for unknown reasons. A list of things to consider: There may be a prompt in Project. Project will not allow Analyzer to communicate with it if a ...
Excel can attempt to use more memory than is available. Here are some suggestions to work around this. Turn off task sheet generation. Turn off formatting and colors. Score a smaller subset of tasks.