initial commit; version 22.5.12042

libs/PhpUnitsOfMeasure/Exception/DuplicateUnitNameOrAlias.php

@@ -0,0 +1,7 @@
+<?php
+namespace PhpUnitsOfMeasure\Exception;
+
+class DuplicateUnitNameOrAlias extends AbstractPhysicalQuantityException
+{
+    protected $error = 'The unit has a name or alias (:labels) which is already a registered unit for this quantity.';
+}