Build error: '../../my-app.js' does not provide an export named 'html'

[kr05]

I am working on a project based of the starter kit. I've had no problems until yesterday, when my build started failing. Locally, the project works fine. But after running the build:prpl-server command and serving it using serve:prpl-server, none of the views in the main-content section load. What the contents of this main-section have in common is that they are all dynamically imported. I checked my sources folder and I can confirm that the file was loaded successfully. The line that seems to be causing problems is the following:

This line is the same in all of the dynamically imported views. It is what is generated by the build process. The console shows the following error when I load the page:

The function at the very top (_loadPage) is the same function provided by the starter kit, but expanded to suit the rest of my views:

What seems very odd is that all of the components that are imported statically load just fine, such as a custom footer, app-header, app-toolbar, and some other components. It's only the dynamically imported components that aren't loading. I've tried:

• creating a new project and copying over the code (it's worked before for some reason, prob due to the clean npm install)
• the import path to a constant variable before passing it as an argument to import (complete failure, polymer-cli complained about being unable to analyze the imports)
• played around with the path (./views vs ../src/views)

but nothing has worked. Any idea what the problem might be? Thanks for the help.

[kr05]

Closing this, as I found the real reason my build was breaking: multiple dynamic imports of the same component. These errors have a very sneaky way of creeping up on you. Moral of the story: don't dynamically import a file twice.

[keanulee]

Duplicate #190. This is fixed in master branch of tools but waiting on a release.