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asked by (12 points)

This is the message I recive at startup. What can I do? It never happend before. I have used it over 6 month.

1 Answer

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answered by (19.3k points)
If you are using a Steam install, you will need to verify file integrity. If you use the X-Plane installer, run it & pick the update option. Either of these will scan the install and replace missing default files.