Could not build only on Unity Cloud Build with Obfuscator error.

I'm using Unity 5.4.2f1. When build on local (Mac OS X : El Capitan) is no problem for iOS and Android build. But when set to Unity Cloud Build same repository, I got following error log.

I set Unity version is "5.4.2f2" on Unity Cloud Build. (I don't know why "f2" only)

And I tried unity 5.5 beta too.

 5337: [Unity] -----CompilerOutput:-stdout--exitcode: 1--compilationhadfailure: True--outfile: Temp/Assembly-CSharp-firstpass.dll
 5338: [Unity] Compilation failed: 1 error(s), 2 warnings
 5339: [Unity] warning CS0618: `System.Security.Permissions.SecurityPermissionAttribute' is obsolete: `CAS support is not available with Silverlight applications.'
 5340: [Unity] warning CS0618: `System.Security.Permissions.SecurityAction' is obsolete: `CAS support is not available with Silverlight applications.'
 5341: [Unity] Assets/Plugins/UnityPurchasing/generated/AppleTangle.cs(12,20): error CS0103: The name `Obfuscator' does not exist in the current context
 5342: [Unity] - Finished compile Library/ScriptAssemblies/Assembly-CSharp-firstpass.dll
 5343: [Unity] Assets/Plugins/UnityPurchasing/generated/AppleTangle.cs(12,20): error CS0103: The name `Obfuscator' does not exist in the current context

My .gitignore is following.

 [Tt]emp/
 [Oo]bj/
 [Bb]uild
 /*/[Ll]ibrary/
 sysinfo.txt
 *.stackdump
 
 /*/dist/
 
 # Autogenerated VS/MD/Consulo solution and project files
 ExportedObj/
 #.consulo/
 #*.csproj
 #*.unityproj
 #*.sln
 #*.suo
 #*.tmp
 #*.user
 #*.userprefs
 #*.pidb
 #*.booproj
 #*.svd
 
 # Visual Studio / Visual Studio Code / MonoDevelop generated
 [Ee]xported[Oo]bj/
 .vs/
 /*.userprefs
 /*.csproj
 /*.pidb
 /*.suo
 /*.sln*
 /*.user
 /*.unityproj
 /*.booproj
 .vscode/
 
 # Unity3D generated meta files
 *.pidb.meta
 
 # Unity3D Generated File On Crash Reports
 sysinfo.txt
 
 # Builds
 *.apk
 #*.unitypackage
 
 # OS generated
 .DS_Store*
 ._*
 .Spotlight-V100
 .Trashes
 Icon?
 ehthumbs.db
 [Tt]humbs.db
 [Dd]esktop.ini
 
 # Xcode (from gitignore.io)
 build/
 *.pbxuser
 !default.pbxuser
 *.mode1v3
 !default.mode1v3
 *.mode2v3
 !default.mode2v3
 *.perspectivev3
 !default.perspectivev3
 xcuserdata
 *.xccheckout
 *.moved-aside
 DerivedData
 *.hmap
 *.ipa
 *.xcuserstate
 
 # CocoaPod
 Pods/*
 Podfile.lock
 
 # others
 *.swp
 !.gitkeep
 .DS_Store
 
 
 # Android Studio
 
 *.apk
 *.ap_
 *.dex
 *.class
 bin/
 gen/
 local.properties
 .classpath
 .project
 proguard/
 *.iml
 *.ipr
 *.iws
 .idea/workspace.xml
 .idea/tasks.xml
 .idea/libraries/
 .gradle
 app/build/

I set enable services following lists in my Unity Project.

• Ads

• Analytics

• Cloud Build

• In-App Purchasing

I would like to solve this problem, What do I do next?