u/DaveDurin

This is the error:

Uncaught exception in thread "main"

java.lang.RuntimeException: Failed to read accessWidener file from mod antishadowpatch

at net.fabricmc.loader.impl.FabricLoaderImpl.loadAccessWideners(FabricLoaderImpl.java:534)

at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:145)

at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:66)

at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

Caused by: net.fabricmc.loader.impl.lib.accesswidener.AccessWidenerFormatException: line 1: Invalid access widener file header. Expected: 'accessWidener <version> <namespace>'

at net.fabricmc.loader.impl.lib.accesswidener.AccessWidenerReader.readHeader(AccessWidenerReader.java:158)

at net.fabricmc.loader.impl.lib.accesswidener.AccessWidenerReader.read(AccessWidenerReader.java:78)

at net.fabricmc.loader.impl.FabricLoaderImpl.loadAccessWideners(FabricLoaderImpl.java:532)

... 3 more