MiddlewareFunc version error

[yekai1003]

Issue Description

cannot use session.Middleware(sessions.NewCookieStore(([]byte)("secret"))) (type "github.com/labstack/echo/v4".MiddlewareFunc) as type "github.com/labstack/echo".MiddlewareFunc

package main

import (

	"github.com/gorilla/sessions"
	"github.com/labstack/echo"
	"github.com/labstack/echo-contrib/session"
	"github.com/labstack/echo/middleware"
)
func main() {
	EchoObj = echo.New()
	EchoObj.Use(middleware.Logger()) //安装日志中间件
	EchoObj.Use(middleware.Recover())
	EchoObj.Use(session.Middleware(sessions.NewCookieStore([]byte("secret"))))

	EchoObj.Use(middleware.GzipWithConfig(middleware.GzipConfig{
		Level: 5,
	}))
	EchoObj.Logger.Fatal(EchoObj.Start(":8080")) //启动服务
}

Version/commit

[ffenix113]

Please use github.com/labstack/echo/v4 instead of github.com/labstack/echo.
Session middleware uses v4 but your code does not. That's why you have an error.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[daniial79]

Im trying to fix cors origin error using middleware lib but I can not pass middleware.CORS() to Use funcfion of e thouhg I am using v4 of echo . the error I face is in below:

cannot use middleware.CORS() (value of type "github.com/labstack/echo".MiddlewareFunc) as "github.com/labstack/echo/v4".MiddlewareFunc value in argument to e.UsecompilerIncompatibleAssign

package middleware

import (
	"github.com/labstack/echo/middleware"
	"github.com/labstack/echo/v4"
)

func CorsHandler(e *echo.Echo) {
	e.Use(middleware.CORS())
}

[aldas]

Change "github.com/labstack/echo/middleware" to "github.com/labstack/echo/v4/middleware"