AndroidのTesseractビルド　"ant release"でエラーがでる

前提・実現したいこと

Tess-Twoのビルドを現在行っているのですが、コマンドプロンプトでの"ant release"でエラーが毎回出てしまいます

発生している問題・エラーメッセージ

C:\Users\ユーザー名\tess\tess-two>ant release
Buildfile: C:\Users\ユーザー名\tess\tess-two\build.xml

-set-mode-check:

-set-release-mode:

-release-obfuscation-check:
     [echo] proguard.config is ${proguard.config}

-pre-build:

-check-env:
 [checkenv] Android SDK Tools Revision 25.2.5
 [checkenv] Installed at D:\android\Sdk

-setup:
     [echo] Project Name: tess-two
  [gettype] Project Type: Android Library

-build-setup:
[getbuildtools] Using latest Build Tools: 25.0.0
     [echo] Resolving Build Target for tess-two...
[gettarget] Project Target:   Android 5.1.1
[gettarget] API level:        22
     [echo] ----------
     [echo] Creating output directories if needed...
    [mkdir] Created dir: C:\ゆ\ユーザー名\tess\tess-two\bin\rsObj
    [mkdir] Created dir: C:\Users\ユーザー名\tess\tess-two\bin\rsLibs
     [echo] ----------
     [echo] Resolving Dependencies for tess-two...
[dependency] Library dependencies:
[dependency] No Libraries
[dependency]
[dependency] ------------------
     [echo] ----------
     [echo] Building Libraries with 'release'...
   [subant] No sub-builds to iterate on

-code-gen:
[mergemanifest] Found Deleted Target File
[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
     [echo] Handling aidl files...
     [aidl] No AIDL files to compile.
     [echo] ----------
     [echo] Handling RenderScript files...
     [echo] ----------
     [echo] Handling Resources...
     [aapt] Found new input file
     [aapt] Generating resource IDs...
     [aapt]     (skipping file '.gitkeep' due to ANDROID_AAPT_IGNORE pattern '.*')
     [echo] ----------
     [echo] Handling BuildConfig class...
[buildconfig] Generating BuildConfig class.

-pre-compile:

-compile:
    [javac] Compiling 24 source files to C:\Users\radiu\tess\tess-two\bin\classes
    [javac] エラー: ソース・オプション1.5は現在サポートされていません。1.6以降を使用してください。
    [javac] エラー: ターゲット・オプション1.5は現在サポートされていません。1.6以降を使用してください。

BUILD FAILED
D:\android\Sdk\tools\ant\build.xml:716: The following error occurred while executing this line:
D:\android\Sdk\tools\ant\build.xml:730: Compile failed; see the compiler error output for details.

Total time: 1 second