I have error while importing project in flutter

I have error while importing project in flutter , But when I create new project fom scratch Everything works ,My gradle version is recognized in my Command prompt and it is 6.6.1 ; I am connected to internet but it can’t download what it need , I need help to download and locate it manually
Thanks All
here is eror
at org.gradle.wrapper.Install.unzip(Install.java:214)
at org.gradle.wrapper.Install.access$600(Install.java:27)
at org.gradle.wrapper.Install$1.call(Install.java:74)
at org.gradle.wrapper.Install$1.call(Install.java:48)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:65)
at org.gradle.wrapper.Install.createDist(Install.java:48)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download…
Exception: Gradle task assembleDebug failed with exit code 1