I met a error that is I can't find any solution!Please help me!

[Himawarinoyakusoku]

This is my image-webpack-loader configration in the vue.config.js.

When I use 'npm run build',I got a error,and it's so weird:

I got 'Expected a buffer' error, but I can't find any solution in stackoverflow and other places.
If anyone who know how to fix it,please tell me,I'm always online,thanks!