borrow a project written by the iview-admin framework. At first, it was a single page, but now the reason for the demand needs to be changed to a multi-page form. The previous set of routes, which reported memory overflow errors, could not be debugged directly.
is now the version of vue-cli3.
have you solved it?
I have also encountered this problem now. I haven't had a clue for a long time, but there is one thing: it is normal if I do not add the pages option, and if I add the pages option, I will report an error, even if there is only one index in the pages option. I just want to be sure that pages must add some other operations to cause an error. I had no choice but to read vue cli official document , and found that there was a plug-in called preload-webpack-plugin
. 
just delete it. I don't understand it, but it works normally.
chainWebpack: config => {
Object.keys(pages).forEach(entryName => {
config.plugins.delete(`preload-${entryName}`)
})
}