Execution failed for task ':android:validateSigningDebug'. > as_sys_sec_alg_ideaCBC
1.) Copy keytool.exe from your 'jdk/bin' folder to the '.android' (in Windows in C:\Users\{Username}\.android)
2.) Generate debug.keystroke in '.android' folder with:
keytool -genkey -v -keystore ~/.android/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"