FileNotFoundException: Could not load file or assembly 'UnityEngine.CloudBuild

Hello,

I get this warning message when building a project in unity cloud build :

243: Assembly: UnityEngine.CloudBuild (assemblyref_index=7)
244: Version: 1.0.6641.25722
245: Public Key: (none)
246: The assembly was not found in the Global Assembly Cache, a path listed in the MONO_PATH environment variable, or in the location of the executing assembly (/BUILD_PATH/ohm-games.baseball.android/Library/ScriptAssemblies/).
247: Could not load file or assembly 'UnityEngine.CloudBuild, Version=1.0.6641.25722, Culture=neutral, PublicKeyToken=null' or one of its dependencies.```
Then later 

283: [Unity] FileNotFoundException: Could not load file or assembly ‘UnityEngine.CloudBuild, Version=1.0.6641.25722, Culture=neutral, PublicKeyToken=null’ or one of its dependencies.
284: [Unity] at (wrapper managed-to-native) System.Reflection.MonoMethodInfo:get_method_info (intptr,System.Reflection.MonoMethodInfo&)
285: [Unity] UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
286: [Unity] UnityEngine.DebugLogHandler:LogException(Exception, Object)
287: [Unity] UnityEngine.Logger:LogException(Exception, Object)
288: [Unity] UnityEngine.Debug:LogException(Exception)```

I am not sure it 100% linked, but I have a PreExport method called which depends on (UnityEngine.CloudBuild.BuildManifestObject) the compilation failed and so the full build as it can not found the PreExport method to call.

My project is using Unity 2017.3.1f1 .

Example preexport, dont forget to add the define.

#if UNITY_CLOUD_BUILD
using UnityEngine;
using UnityEditor;
using System;
using System.IO;
using System.Xml;

public class CloudBuildHelper : MonoBehaviour
{
public static void PreExport(UnityEngine.CloudBuild.BuildManifestObject manifest)
{
PlayerSettings.bundleVersion = $“1.0.{manifest.GetValue(“buildNumber”, “0”)}”;
}
}
#endif

Thanks , but I don(t think that was my problem as it was in cloud build.

Anyway, It just went away with no reason … now it compile …