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build-error occur when build generated code #216

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KerwinKoo opened this issue Jan 24, 2016 · 4 comments
Closed

build-error occur when build generated code #216

KerwinKoo opened this issue Jan 24, 2016 · 4 comments

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@KerwinKoo
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I just run the test code in READEM.md.

After running $ goagen bootstrap -d goa-adder/design, when I go build the generated code, some error showed in the terminal:

# goa-adder
./main.go:21: cannot use service (type "github.com/goadesign/goa".Service) as type "github.com/raphael/goa".Service in argument to NewOperandsController:
    "github.com/goadesign/goa".Service does not implement "github.com/raphael/goa".Service (wrong type for DecodeRequest method)
        have DecodeRequest(*"github.com/goadesign/goa".Context, interface {}) error
        want DecodeRequest(*"github.com/raphael/goa".Context, interface {}) error
./operands.go:16: cannot use OperandsController literal (type *OperandsController) as type app.OperandsController in return argument:
    *OperandsController does not implement app.OperandsController (wrong type for ErrorHandler method)
        have ErrorHandler() "github.com/raphael/goa".ErrorHandler
        want ErrorHandler() "github.com/goadesign/goa".ErrorHandler

I don't know what causes that, but It's fun befor I running go get -v -u https://github.com/goadesign/goa to update Goa package. Can it be possible that the error caused by the new version?
@KerwinKoo KerwinKoo reopened this Jan 24, 2016
@raphael
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raphael commented Jan 24, 2016

Is it possible that you have an old goagen laying around? I see that the code is using raphael/goa instead of the new location goadesign/goa. Maybe try doing a go get -u github.com/goadesign/goa/goagen.

@KerwinKoo
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I knew what happend. It created a new directory named github.com/raphael/ when I update Goa by running "go get -u", goimport can thus import this raphael package.

Now I deleted this wrong package path. But I also don't know why the raphael can be created after updating?

@raphael
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raphael commented Jan 24, 2016

Probably because the code where you did go get -u still had reference to the raphael repo. I would do this:

  1. Remove all the generated code directories (./app, ./swagger, etc.)
  2. Search and replace github.com/raphael with github.com/goadesign in all your files
  3. go get -u github.com/goadesign/goa/goagen
  4. For good measure (shouldn't be needed): rm -rf $GOPATH/src/github.com/raphael/goa

@KerwinKoo
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It works after running go get -u github.com/goadesign/goa/goagen. Thank you @raphael .

But I still don't understand why created the raphael path, I never go get the goa package in raphael.

Thanks again!

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@raphael @KerwinKoo