彻底解决unable to find valid certification path to requested target
Reprint:
1 First, open the Android Studio-> File-> Settings-> then search for -> HTTP
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Note: I am inside the URL is http://jcenter.bintray.com/com/sun/activation/javax.activation/1.2.0/javax.activation-1.2.0.pom
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Then success, ha ha ha! ! ! !