Run grunt update, see phetsims/chipper#1148

balancing-act_en.html

@@ -139,7 +139,7 @@
 
   // Module loading in compilation-free (development) mode will be kicked off once strings are loaded.
   // This is done in load-unbuilt-strings.js
-  window.phet.chipper.loadModules = () => loadURL( 'js/balancing-act-main.js', 'module' );
+  window.phet.chipper.loadModules = () => loadURL( '../chipper/dist/balancing-act/js/balancing-act-main.js', 'module' );
 </script>
 </body>
 </html>

js/balancingActStrings.ts

@@ -0,0 +1,51 @@
+// Copyright 2020-2021, University of Colorado Boulder
+
+/**
+ * Auto-generated from modulify, DO NOT manually modify.
+ */
+/* eslint-disable */
+import getStringModule from '../../chipper/js/getStringModule.js';
+import balancingAct from './balancingAct.js';
+
+type StringsType = {
+  'balanceLab': string,
+  'level': string,
+  'people': string,
+  'forcesFromObjects': string,
+  'meters': string,
+  'kg': string,
+  'mysteryObjects': string,
+  'whatWillHappen': string,
+  'massLabelH': string,
+  'massLabelG': string,
+  'massLabelF': string,
+  'rulers': string,
+  'massLabelE': string,
+  'massLabelD': string,
+  'massLabels': string,
+  'unknownMassLabel': string,
+  'massLabelC': string,
+  'massLabelB': string,
+  'massLabelA': string,
+  'whatIsTheMass': string,
+  'bricks': string,
+  'pattern0Label1Value': string,
+  'pattern0Value1Units': string,
+  'intro': string,
+  'balancing-act': {
+    'title': string
+  },
+  'show': string,
+  'game': string,
+  'balanceMe': string,
+  'position': string,
+  'none': string,
+  'marks': string,
+  'startOver': string
+};
+
+const balancingActStrings = getStringModule( 'BALANCING_ACT' ) as StringsType;
+
+balancingAct.register( 'balancingActStrings', balancingActStrings );
+
+export default balancingActStrings;