Error:unsupported class file version 52.0. What do we do?



  • Error:unsupported class file version 52.0
    Error:PARSE ERROR:
    Error:1 error; aborting
    Error:...while parsing com/mysql/jdbc/JDBC42CallableStatement.class
    Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
    > com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_73\bin\java.exe'' finished with non-zero exit value 1
    :app:transformClassesWithDexForDebug FAILED
    

    What a mistake and how to fix it. How do you put jdbc?



  • Here. https://www.oracle.com/java/technologies/javase/8-compatibility-guide.html :

    The class file version for Java SE 8 is 52.0 as per the JVM Specification. Version 52.0 class files produced by a Java SE 8 compiler cannot be used in earlier releases of Java SE.

    Deliver JDK 1.7 and recompilate.




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