Ionic cordova build error

I am back,

i try your solution which is installing the latest version of ''Android Studio" that comes with the Android SDK.

and then i try again to generate the apk for the ionic application and the console returns me this error:

`
C:\Users\User\Desktop\ionic 2\44\scanbot-sdk-example-ionic2-master (2)\scanbot-sdk-example-ionic2-master>ionic cordova build
? What platform would you like to build: ios, android: android
Running app-scripts build: --iscordovaserve --externalIpRequired --nobrowser

[04:15:28] build dev started ...
[04:15:28] clean started ...
[04:15:28] clean finished in 196 ms
[04:15:28] copy started ...
[04:15:28] transpile started ...
[04:15:50] transpile finished in 21.68 s
[04:15:50] preprocess started ...
[04:15:50] preprocess finished in less than 1 ms
[04:15:50] webpack started ...
[04:15:53] copy finished in 25.00 s
[04:16:10] webpack finished in 20.14 s
[04:16:10] sass started ...
[04:16:22] sass finished in 11.75 s
[04:16:22] postprocess started ...
[04:16:22] postprocess finished in less than 1 ms
[04:16:22] lint started ...
[04:16:22] build dev finished in 53.92 s

cordova build android
\ Running command [04:16:28] lint finished in 6.71 s
Running command - failed!

[ERROR] Cordova encountered an error.
You may get more insight by running the Cordova command above directly.

[ERROR] An error occurred while running cordova build android (exit code 1):

    ANDROID_HOME=C:\Users\User\AppData\Local\Android\sdk
    JAVA_HOME=C:\Program Files\java\jdk1.7.0_67
    Error: Requirements check failed for JDK 1.8 or greater

`

What should i do to solve the problem !!

and thanks for your help