"No such file or directory" error should be more descriptive

[mymikemiller]

Not sure if this is the right place for this; I couldn't find dfx on github.

I've gotten the following error a few times when running dfx build. It would be nice if the error listed what files weren't found so I can more easily address the problem. As it is, unless you're building very often and happen to catch the missing file as you add a refrence somewhere, it's hard to track down exactly what's missing.

The error is as follows:

$ dfx build
Building canisters...
Building frontend...
Build failed. Reason:
  Postbuild step failed for canister cxeji-wacaa-aaaaa-aaaaa-aaaaa-aaaaa-aaaaa-q with error: An error occured:
Io(
    Os {
        code: 2,
        kind: NotFound,
        message: "No such file or directory",
    },
)

[nomeata]

That is more likely an issue with the dfx tool (and I think there have been improvements in that direction recently, ideally report the version number with a report). dfx isn’t open source yet, until then I think https://forum.dfinity.org is a suitable venue for such reports.

[mymikemiller]

Thank you @nomeata. I posted to the forum.