Failed to decode

I made import in my vuejs project: 
![image](https://user-images.githubusercontent.com/40566871/104852667-06cb4900-58db-11eb-8cce-445ee9c41fae.png)

but, when i will test in browser im getting this error :
![image](https://user-images.githubusercontent.com/40566871/104852682-27939e80-58db-11eb-924e-f143ec335092.png)
