Build Error: BuildPlayerWindow+BuildMethodException

Hello, As the title suggests my team and I have been encountering build issues.

I've run into exceptions during builds before such as ones complaining that some meshes don't have albedo UV's but builds were always able to finish with those errors. This new error prevents builds from finishing which is completely stopping up our release pipeline.

The main text of the error reads "UnityEditor.BuildPlayerWindow+BuildMethodsExceptions" and happens during builds on both mac and windows (usually we build on windows)
Windows Errors:


Mac Errors:


I've read through and tried fixes from a number of posts from people experiencing similar issues such as these:
https://answers.unity.com/questions/1378775/i-dont-know-what-this-is-someone-help-me.html
https://answers.unity.com/questions/1394303/build-failed-with-errors-please-help.html
https://answers.unity.com/questions/1380921/build-failed-with-errors-at-unityeditorbuildplayer.html

I'm running unity 2017.2.0f3
Editor Logs Attached

 

Hey got a fix for it? It's happening for me too

 

what is the fix for this..?

 

I face the same problem and try many solutions, but none of them work. the other things I don't have folder "buildslave".
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Code (CSharp):

1. UnityEditor.BuildPlayerWindow+BuildMethodException: 2 errors
2.   at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x00234] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:190
3.   at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x0007f] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:96
4. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
5.