fix location, so that runtime can be found from /tmp

templates/main.js

@@ -1,4 +1,4 @@
-import app from 'sapper/runtime/app.js';
+import app from '__app__';
 import { detachNode } from 'svelte/shared.js';
 
 const target = document.querySelector('__selector__');

utils/create_app.js

@@ -34,6 +34,7 @@ module.exports = function create_app(src, dest, routes, options) {
 		.join(' else ') + ' else return false;';
 
 	const main = template
+		.replace('__app__', path.resolve(__dirname, '../runtime/app.js'))
 		.replace('__selector__', options.selector || 'main')
 		.replace('// ROUTES', code);