can't build in unity 2017.4.24

[praneethpj]

Following is the unity log

CommandInvokationFailure: Gradle build failed.
C:\Program Files\Java\jdk1.8.0_31\bin\java.exe -classpath "C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-4.6.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleRelease"

stderr[

FAILURE: Build failed with an exception.

• What went wrong:
  A problem occurred configuring root project 'gradleOut'.

Could not resolve all artifacts for configuration ':classpath'.
Could not resolve com.android.tools.build:gradle:3.2.0.
Required by:
project :
> Could not resolve com.android.tools.build:gradle:3.2.0.
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'.
> dl.google.com
> Could not resolve com.android.tools.build:gradle:3.2.0.
> Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'.
> Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'.
> jcenter.bintray.com

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1s
]
stdout[

]
exit code: 1
UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action1 progress, System.String error) UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, System.Action1 progress)
Rethrow as GradleInvokationException: Gradle build failed
UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, System.Action`1 progress)
UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Build completed with a result of 'Failed'
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

UnityEditor.BuildPlayerWindow+BuildMethodException: 2 errors
at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (BuildPlayerOptions options) [0x0020e] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:181
at UnityEditor.BuildPlayerWindow.CallBuildMethods (Boolean askForBuildLocation, BuildOptions defaultBuildOptions) [0x00065] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:88
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)