I installed Rhodes 4.1.1 from Git, and use it to build my application on IOS and it's Working, but on Android i had an error :
Server Error
Error: uninitialized constant Rho::SignatureCaptureTrace: C:/rhodes-master/rhodes/lib/framework/rho/rho.rb:1243:in `const_missing'C:/BarCloudAppv3.9/app/SignatureUtil/controller.rb:41:in `new'C:/rhodes-master/rhodes/lib/framework/rho/rhocontroller.rb:101:in `serve'C:/rhodes-master/rhodes/lib/framework/rho/rhoapplication.rb:217:in `serve'C:/rhodes-master/rhodes/lib/framework/rho/rho.rb:843:in `serve'

this is my Build.yml:
sdk: "C:/rhodes-master/rhodes"
sdkversion: "4.1.1"
name: "BarCloud"
version: 3.9
vendor: "ASAP Systems"
build: "debug"
bbver: 4.6
wm:
  sdk: "Windows Mobile 6 Professional SDK (ARMV4I)"
  emulator: "Windows Mobile 6.5 Professional QVGA Emulator"
applog: "rholog.txt"
iphone:
  configuration: "Release"
  sdk: "iphoneos7.1"
  provisionprofile:
  codesignidentity:
  entitlements:
  BundleIdentifier: "com.asapsystems.barcloud"
  BundleURLScheme: "BarCloud"
  emulatortarget: "iphone"
  extensions:
    - barcode
wp:
  productid: "aa495d20-5678-012f-a3ce-54e9f0b1b718"
symbian:
  uid: 3931233725
android:
  manifest_template: "AndroidManifest.erb"
  version: "2.3.3"
  emulator: "Android_501"
  production:
    certificate: "C:/Program Files/Java/jdk1.8.0_25/bin/87612.keystore"
    password: "XXXX!"
    alias: "BarCloud"
extensions:
  - json
  - barcode
  - coreapi
capabilities:
  - signature
  - camera
  - gps
  - sdcard
motorola_license_company: "XXXXSystems"
motorola_license: "XXXXXXXXXXXX"
this is my rhobuild.yml:
---
env:
  paths:
    java: C:/Program Files/Java/jdk1.8.0_25/bin
    android: C:/Program Files (x86)/Android/android-sdk
    android-ndk: C:/android-ndk-r9
    cabwiz: C:/Windows/Microsoft.NET/Framework64/v4.0.30319/MSBuild.exe
    msbuild: C:/Windows/Microsoft.NET/Framework/v4.0.30319/MSBuild.exe
    vcbuild: C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/vcpackages/vcbuild.exe
    4.2:
      jde:
      mds:
    4.6:
      jde:
      mds:
build:
  wmpath: platform/wm
  wp8path: platform/wp8
  androidpath: platform/android
  iphonepath: platform/iphone
android:
excludedirs:
  all:
  - ! '**/.*.swo'
  - ! '**/.*.swn'
  - ! '**/.DS_Store'

Any help ?