object-to-form | Convert an object to formdata

This issue drove me crazy for a few hours too.

The solution is to add to nuxt.config.js into build section:

Due to the way that the controller is handling the file upload parts of the request, I suspect you may need to make some adjustments to your process and allow for the fact that the files are being separated from the main object.

I've included some adjustments to your code below (note, this is untested so you may need to experiment a little), assuming that the files come through in the same order as you Documents, then just run a match up process before running your own process.

Code for controller:

yarn upgrade does not update package.json, only the lock file. Actually, none of the yarn upgrade flags do. There's a long discussion about this in here

You can do the following:

• Reinstall React with yarn add react@latest
• Install a npm package to check updates, for example, npm-check-updates. Run it to update package.json and then try yarn install.
• Or you can install that specific React version yarn upgrade react@16.8.2.

This is the intended behaviour, even though it is very confusing in the docs.