Gin: conflicts with existing children in path

[nicolascamilo]

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Description

Receiving "panic: wildcard route ':id' conflicts with existing children in path '/users/:id'" error

How to reproduce

    user := r.Group("/users")
    {
        user.POST("/", ur.SignUp)
        user.POST("/login", l.Login)
        user.GET("/sendconfirmationemail/:userId", rc.SendConfirmationEmail)
        user.GET("/:id", lc.GetUserByUserId)
        user.GET("/confirmemail", rc.ConfirmEmail)
        user.GET("/resendconfirmationemail", rc.ResendEmailConfirmation)
        user.GET("/forgotusername", rc.ForgotUsername)
        user.GET("/sendpasswordreset", rc.SendPasswordReset)
        user.POST("/confirmpasswordreset", rc.ConfirmPasswordReset)
    }

Expectations

Somewthing working

Actual result

wildcard error

Environment

• go version: 1.13.18
• gin version (or commit ref): 1.5.0
• operating system: windows

[appleboy]

See https://github.com/gin-gonic/gin/issues/2016#issuecomment-523204888