Gradle fails to resolve artifacts

Gradle fails to resolve artifacts when i run ionic cordova emulate android. I have tried suggestions found in this forums and on stackoveflow but none seems to resolve my problem.
part of the printed out error message

 * What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not download fastutil.jar (it.unimi.dsi:fastutil:7.2.0)
      > Could not get resource 'https://jcenter.bintray.com/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.jar'.
         > Connection reset
   > Could not download kotlin-reflect.jar (org.jetbrains.kotlin:kotlin-reflect:1.3.11)
      > Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.3.11/kotlin-reflect-1.3.11.jar'.
         > Read timed out

the output of the ionic info command

Ionic:

   Ionic CLI                     : 5.2.4 (/usr/local/lib/node_modules/ionic)
   Ionic Framework               : @ionic/angular 4.7.1
   @angular-devkit/build-angular : 0.801.3
   @angular-devkit/schematics    : 8.1.3
   @angular/cli                  : 8.1.3
   @ionic/angular-toolkit        : 2.0.0

Cordova:

   Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms : android 8.0.0
   Cordova Plugins   : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.1.1, (and 6 other plugins)

Utility:

   cordova-res : not installed
   native-run  : 0.2.8 

System:

   Android SDK Tools : 26.1.1 (/home/ahmed/.android/)
   NodeJS            : v12.8.1 (/home/ahmed/.nvm/versions/node/v12.8.1/bin/node)
   npm               : 6.10.2
   OS                : Linux 5.0

I am facing same issue how dis you resolve your errors