My XML
layout is not rendering with this error message. I am already using Java 8.
Also using latest build tools in Gradle.
and
try to use in project Java 1.8 - download last version of JDK and install it(if JSK is absent)
Then add to build.gradle these lines android { ... // Configure only for each module that uses Java 8 // language features (either in its source code or // through dependencies). compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } // For Kotlin projects kotlinOptions { jvmTarget = "1.8" } }