Invalid Multi-match
Why This Error Occurred​
In one of your custom-routes you specified a multi-match /:path* and used it in your destination without adding the * in your destination e.g. destination: '/another/:path'
Possible Ways to Fix It​
Add * to your usage of the multi-match param in your destination.
Before
{
source: '/:path*',
destination: '/another/:path'
}
After
{
source: '/:path*',
destination: '/another/:path*'
}