Lost Power mid Build now I'm getting errors

Unity Engine
1

I’m using Unity 5.6.4 at work and partway through the build process someone else in the office was installing a new computer and pulled the wrong plug, and my computer lost power. At the time I thought, “OK annoying ,but at least everything was saved.” I turn my computer back on and load unity up again to start the build anew, but I’m getting errors now

Failed reading from: ‘57/57e010ade26cabec18f39a43f4c6f9a7.osi’.

‘Compositing’ job failed with error code: 4 (‘Failed reading Indirect file.’).
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun()

Failed reading from: ‘48/4845d1b12de3b1fd2d2baa8810684b6d.osi’.

‘Compositing’ job failed with error code: 4 (‘Failed reading Indirect file.’).

Not sure what these files are. I’m getting these errors even when I just try load the scene the build was working on before it lost power. Is the build from when my computer lost power half done somewhere and I have to get rid of it before making a new build? When building it gets stuck on “Building scene 2: corridor (16/17 Compositing | 8 jobs)”

2

Sounds like the light backe cache was damaged.
You could delete the mentioned file in the GI Cache folder or just clear the cache. (Clearing the cache would mean a full rebuild of the light maps of your project.)
You can find the button to clear the cache and the GI path in the unity “Preferences” under “GI Cache”

3

I cleared the cache and it’s not giving me errors anymore. Told it to build again and took so long that i decided to let it go overnight. Came back to it now and its on Scene 5/6 (5/11 Clustering | 45 jobs) not sure if its still taking its dear sweet time or stuck again.

EDIT: now at 5/11 Clustering | 38 jobs so it looks like its just taking ages