Hello I have downloaded pega personal edition 8.4 from pega pdn. I am getting lots of errors while installing in my Windows 10 laptop.

BUILD FAILED C:\*******\pega\8.4\pegaGuiInstallerTemp\build.xml:164: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')     at com.pega.pegarules.util.anttasks.IsDBAvailable.addJar(IsDBAvailable.java:59)     at com.pega.pegarules.util.anttasks.IsDBAvailable.execute(IsDBAvailable.java:83)     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)     at jdk.internal.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.base/java.lang.reflect.Method.invoke(Method.java:564)     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)     at org.apache.tools.ant.Task.perform(Task.java:348)     at org.apache.tools.ant.Target.execute(Target.java:435)     at org.apache.tools.ant.Target.performTasks(Target.java:456)     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)     at org.apache.tools.ant.Project.executeTarget(Project.java:1364)     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)     at org.apache.tools.ant.Project.executeTargets(Project.java:1248)     at org.tp23.antinstaller.antmod.Main.runBuild(Main.java:710)     at org.tp23.antinstaller.antmod.Main.startAnt(Main.java:218)     at org.tp23.antinstaller.antmod.Launcher.run(Launcher.java:216)     at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:79)     at org.tp23.antinstaller.runtime.ExecInstall.exec(ExecInstall.java:88)     at org.tp23.antinstaller.selfextract.SelfExtractor.main(SelfExtractor.java:398)

Total time: 37 seconds org.tp23.antinstaller.InstallException: Use logs to find the cause, then correct and run again      at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:91)     at org.tp23.antinstaller.runtime.ExecInstall.exec(ExecInstall.java:88)     at org.tp23.antinstaller.selfextract.SelfExtractor.main(SelfExtractor.java:398) Caused by: org.tp23.antinstaller.InstallException: Use logs to find the cause, then correct and run again      at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:81)     ... 2 more --- Nested Exception --- org.tp23.antinstaller.InstallException: Use logs to find the cause, then correct and run again      at org.tp23.antinstaller.runtime.exe.AntLauncherFilter.exec(AntLauncherFilter.java:81)     at org.tp23.antinstaller.runtime.ExecInstall.exec(ExecInstall.java:88)     at org.tp23.antinstaller.selfextract.SelfExtractor.main(SelfExtractor.java:398)  

Can some one please help.