Unsupported metadata version. check that your kotlin version is >= 1.0: java.lang.illegalstateexception: unsupported metadata version. check that your kotlin version is >= 1.0

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The error message “java.lang.illegalstateexception: unsupported metadata version. check that your kotlin version is >= 1.0” indicates that there is a mismatch between the version of Kotlin you are using and the required version for the metadata. To resolve this issue, you need to update your Kotlin version to a version that is equal to or greater than 1.0.

Here is an example of how to update Kotlin version using different build systems:

  • Gradle:

                    buildscript {
                    ext.kotlin_version = '1.0.5'
                    ...
                }
                ...
  • Maven:

                    <properties>
                    <kotlin.version>1.0.5</kotlin.version>
                </properties>
                ...
  • Ant:

                    <property name="kotlin.version" value="1.0.5" />
                ...

Once you have updated the Kotlin version in your build system configuration, rebuild your project to ensure that the changes take effect. This should resolve the “unsupported metadata version” error.

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