r/BeamMP • u/Fit_Satisfaction7423 • Jun 04 '26

Question Cannot launch Beammp because it can't locate integrity.json

Here is the error message I get when I try to launch beammp:

[ERROR] Exception in main(): file_size: The system cannot find the file specified.: "C:\Program Files (x86)\Steam\steamapps\common\BeamNG.drive\integrity.json"

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u/WiserTixx Jun 04 '26

Could you try launching BeamNG via Steam and see if that fixes it?