System.InvalidOperationException: Not a ldc.i4 instruction

[greenozon]

hit this case on some assembly

.........
←[0;31;40;1;4m38525 [1] FATAL UnConfuserEx    - Caught exception when trying to remove Constants protection←[0m
←[0;31;40;1m38557 [1] ERROR UnConfuserEx    - System.InvalidOperationException: Not a ldc.i4 instruction: IL_147A: xor
   at dnlib.DotNet.Emit.Instruction.GetLdcI4Value()
...........

err11.zip