monacaのビルドが成功できません。

###前提・実現したいこと
monacaにて、android のアプリのビルドを作成したいのですが、エラーが出てできません。私はプログラミングの知識がなく何が問題なのか全くわからないのですが、どなたか教えていただけないでしょうか？普段と違う事は、soundのファイルが普段あるのですが、必要なかったため削除しました。素人なため、googleで検索などもしてみましたが、全くわからずに行き止まっています。

###発生している問題・エラーメッセージ
アプリのビルドに失敗しました。ビルド設定に間違いがある可能性があります。下記の設定を再確認してください。

AndroidManifest.xmlは正しく記述されていますか？
キーストア設定は正しいですか？

###該当のソースコード
mongodb://10.20.4.14:27017,10.20.4.12:27017,10.20.4.13:27017 | asialTemporary folder: /private/tmp/monaca/58571715ff2af21066447f66
Downloading project
Download complete
Running for 5.2
plugin add mobi.monaca.plugins.Monaca
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Fetching plugin "mobi.monaca.plugins.Monaca" via npm
Installing "mobi.monaca.plugins.Monaca" for android
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
plugin add cordova-plugin-whitelist@1.0.0
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Fetching plugin "cordova-plugin-whitelist@1.0.0" via npm
Installing "cordova-plugin-whitelist" for android
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
plugin add cordova-plugin-splashscreen@2.1.0
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Fetching plugin "cordova-plugin-splashscreen@2.1.0" via npm
Installing "cordova-plugin-splashscreen" for android
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
plugin add cordova-plugin-inappbrowser@1.0.1
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Fetching plugin "cordova-plugin-inappbrowser@1.0.1" via npm
Installing "cordova-plugin-inappbrowser" for android
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
plugin add cordova-plugin-media@1.0.1
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Fetching plugin "cordova-plugin-media@1.0.1" via npm
Installing "cordova-plugin-media" for android
Fetching plugin "cordova-plugin-file" via npm
Installing "cordova-plugin-file" for android
Fetching plugin "cordova-plugin-compat" via npm
Installing "cordova-plugin-compat" for android

The Android Persistent storage location now defaults to "Internal". Please check this plugin's README to see if your application needs any changes in its config.xml.

If this is a new application no changes are required.

If this is an update to an existing application that did not specify an "AndroidPersistentFileLocation" you may need to add:

  &quot;&lt;preference name=&quot;AndroidPersistentFileLocation&quot; value=&quot;Compatibility&quot; /&gt;&quot;

to config.xml in order for the application to find previously stored files.

No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
plugin add cordova-plugin-dialogs@1.1.1
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Fetching plugin "cordova-plugin-dialogs@1.1.1" via npm
Installing "cordova-plugin-dialogs" for android
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
Project has 6 plugins.
8 plugins has been installed.
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Running command: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/hooks/after_prepare/monaca_enterprise_android.js /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled
Running command: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/cordova/build --release
ANDROID_HOME=/Applications/android-sdk-macosx
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home
Running: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/gradlew cdvBuildRelease -b /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/build.gradle -Dorg.gradle.daemon=true
:preBuild
:preReleaseBuild
:checkReleaseManifest
:CordovaLib:compileLint
:CordovaLib:copyReleaseLint UP-TO-DATE
:CordovaLib:mergeReleaseProguardFiles
:CordovaLib:preBuild
:CordovaLib:preReleaseBuild
:CordovaLib:checkReleaseManifest
:CordovaLib:prepareReleaseDependencies
:CordovaLib:compileReleaseAidl
:CordovaLib:compileReleaseRenderscript
:CordovaLib:generateReleaseBuildConfig
:CordovaLib:generateReleaseAssets UP-TO-DATE
:CordovaLib:mergeReleaseAssets
:CordovaLib:generateReleaseResValues
:CordovaLib:generateReleaseResources
:CordovaLib:packageReleaseResources
:CordovaLib:processReleaseManifest
:CordovaLib:processReleaseResources
:CordovaLib:generateReleaseSources
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
:CordovaLib:compileReleaseJava
:CordovaLib:processReleaseJavaRes UP-TO-DATE
:CordovaLib:packageReleaseJar
:CordovaLib:compileReleaseNdk
:CordovaLib:packageReleaseJniLibs UP-TO-DATE
:CordovaLib:packageReleaseLocalJar UP-TO-DATE
:CordovaLib:packageReleaseRenderscript UP-TO-DATE
:CordovaLib:bundleRelease
:prepareAndroidCordovaLibUnspecifiedReleaseLibrary
:prepareReleaseDependencies
:compileReleaseAidl
:compileReleaseRenderscript
:generateReleaseBuildConfig
:generateReleaseAssets UP-TO-DATE
:mergeReleaseAssets
:generateReleaseResValues
:generateReleaseResources
:mergeReleaseResources
:processReleaseManifest
:processReleaseResources
:generateReleaseSources
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/src/org/apache/cordova/file/AssetFilesystem.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
:compileReleaseJava
:lintVitalRelease
:compileReleaseNdk
:preDexRelease
:dexRelease
:processReleaseJavaRes UP-TO-DATE
:validateReleaseSigning
:packageRelease FAILED

FAILURE: Build failed with an exception.

What went wrong:

Execution failed for task ':packageRelease'.
> Failed to read key net.jp.apps.funta from store "/private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/etc/keystore.private": Cannot recover key

Try:

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 49.31 secs

/private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/cordova/node_modules/q/q.js:126
throw e;
^
Error code 1 for command: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/gradlew with args: cdvBuildRelease,-b,/private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/build.gradle,-Dorg.gradle.daemon=true
ERROR building one of the platforms: Error: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/cordova/build: Command failed with exit code 8
You may not have the required environment or OS to build this project
Error: /private/tmp/monaca/58571715ff2af21066447f66/android/skeleton/platforms/android/cordova/build: Command failed with exit code 8
at ChildProcess.whenDone (/data/monaca_build_module/5.2/node_modules/cordova/node_modules/cordova-lib/src/cordova/superspawn.js:139:23)
at ChildProcess.emit (events.js:98:17)
at maybeClose (child_process.js:755:16)
at Process.ChildProcess._handle.onexit (child_process.js:822:5)
Build error: Error building project source code