Unable to load source manifest

[ReneTC]

Not sure what is going on, this package have worked for me in the past.
However, a fresh install of evidence results in the error

>>>meltano invoke evidence dev
Unable to load source manifest

Of course opening the web browser I see no data:

It's strange to me, because I can see everything seems to be okay. The default "needful_things.duckdb" is there, I can go to the UI settings and successfully connect to the database.

I've followed the guide:
https://hub.meltano.com/utilities/evidence/
first:
meltano add utility evidence
then:
meltano invoke evidence initialize
then:
meltano invoke evidence dev

edit//
Now I am getting tons of npm errors. Anyone who can get this repo to work? Or is it just me.
Running Meltano 3.3.2, duckdb 0.10.0

[matsonj]

@ReneTC Evidence has recently added npm run sources as a step, which is not explicitly in this adapter yet. But this can be invoked with meltano invoke evidence npm run sources. Can you see if that works for you.

[ReneTC]

Getting npm ERR! Missing script: "sources". Anyone else?

[matsonj]

Ah I think I may know what is going on here. Your evidence project doesn’t have the sources script. Add this line to your package.json file https://github.com/matsonj/nba-monte-carlo/blob/cde32115231c20175f9d7c3d07d8af5c433ece22/evidence/package.json#L9

[ReneTC]

Thanks, I tried reinstalling in a new machine with meltano invoke evidence npm run sources. I suggest updating the installation guide.

I'm not sure in what order these steps should be executed, but I can help find out if you agree more description should be added