Inability to Use 'ssv' in gradle.build Build Script

[mainmethod0126]

ssv {
    isDateInBuildArtifactDirPath = true;
}

When adding "ssv {}" to build.gradle as shown above, the following error occurs and the build cannot be completed.

1: Task failed with an exception.
-----------
* Where:
Build file 'D:\Project\simple-semantic-version\app\build.gradle' line: 51

* What went wrong:
A problem occurred evaluating project ':app'.
> Could not find method ssv() for arguments [build_iu1hap49qtfsj2q98v84jkvq$_run_closure3$_closure10@5f4a36b0] on extension 'gradlePlugin' of type org.gradle.plugin.devel.GradlePluginDevelopmentExtension.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

You can ignore the 'gradlePlugin' part in the attached error message. It is a keyword that occurred when I tried to put it in blocks here and there to fix the error.