Add some checks

Author: Ives van Hoorne

packages/app/src/sandbox/eval/transpilers/babel/index.js

@@ -45,6 +45,8 @@ class BabelTranspiler extends WorkerTranspiler {
       const babelConfig = getBabelConfig(foundConfig, loaderOptions, path);
 
       const isV7 = !!(
+        configs.package &&
+        configs.package.parsed &&
         configs.package.parsed.devDependencies &&
         configs.package.parsed.devDependencies['@vue/cli-plugin-babel']
       );