Improved error message, when a markdown file is missing …

[ubogdan]

Describe the PR
Removed pkg/errors dependency from whole project tree.
Finish PR #413
Removed an error handler that was introduced to fix #432 . error is nil all the time , the code works the same without that piece of code.

Relation issue
None

Additional context
None.

[pei0804]

Good job.

[pei0804]

Why does have more dependencies in go module?
We forgotten add dependencies?

[ubogdan]

if you speak about "go.mod"

1. package "github.com/gin-gonic/gin" is used in example/ folder in most of them
2. package "github.com/satori/go.uuid" is used in example/celler/model/account.go
3. package "golang.org/x/tools" is used in operation.go

[pei0804]

It seems necessary.

[pei0804]

LGTM

[easonlin404]

@swaggo/swaggo-core-team IMO, I think github.com/gin-gonic/gin and
github.com/satori/go.uuid these packages don't need to add in go.mod because all of these only be used in example. I purpose that adding go.mod in examples code itself is better.

[easonlin404]

leave comment #491 (comment)

[pei0804]

Sound good.
If so, are dependencies ignored for example code?

[easonlin404]

no I mean github.com/gin-gonic/gin and github.com/satori/go.uuid these should be declare at their own example go.mod like:

github.com/swaggo/swag/tree/master/example/basic/go.mod
github.com/swaggo/swag/tree/master/example/celler/go.mod

not added in github.com/swaggo/swag/go.mod

[pei0804]

OK. I understand.

[pei0804]

I create PR.

[pei0804]

can not multi go.mod.

package github.com/swaggo/swag/example/celler: unknown import path "github.com/swaggo/swag/example/celler": ambiguous import: found github.com/swaggo/swag/example/celler in multiple modules: