in scripts/date-versions.js [79:90]
function coerceToSemVer(version) {
const isDateVersion = !semver.valid(version) && checkDateVersion(version);
// Check the version is in the constants or a valid SemVer
if (!isDateVersion && !semver.valid(semver.coerce(version))) {
throw new Error("A valid version parameter must be defined " + version);
}
return semver.coerce(
isDateVersion ? coerceToDateSemver(version).semver : version
);
}