systemProp.http.proxyHost=your.proxy.server systemProp.http.proxyPort=8080 systemProp.https.proxyHost=your.proxy.server systemProp.https.proxyPort=8080 Use code with caution.
Sometimes, a partial or failed download leaves the .gradle folder in a "dirty" state, preventing subsequent attempts from succeeding.
The error org.gradle.api.UncheckedIOException: Cannot download published Gradle versions typically occurs when the Gradle Buildship plugin (often within VS Code or Eclipse) or the Gradle Wrapper fails to connect to the central distribution server. systemProp
A common cause for this specific UncheckedIOException is an SSLHandshakeException . This happens if your Java Virtual Machine (JVM) doesn't trust the SSL certificate from the Gradle servers, often due to SSL-intercepting security software like ZScaler.
Unable to build a Java project due to certificates - Help/Discuss A common cause for this specific UncheckedIOException is
This guide explores the root causes and provide actionable fixes to get your builds back on track. 1. Proxy and Firewall Barriers
Add your proxy details to the global gradle.properties file, usually located at ~/.gradle/gradle.properties : properties systemProp
keytool -import -alias gradleDownload -file cert.pem -keystore "$JAVA_HOME/lib/security/cacerts" -storepass changeit Use code with caution.