Noted That:

• To install correctly this wpcom-crosspost.zip .
• Fisrt Download the wpcom-crosspost.zip to your computer
• Extract/Open wpcom-crosspost.zip to Your Computer.
• Then, Find readme.txt file inside wpcom-crosspost.zip and Open readme.txt .
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the Tips Below.

Start the Tips:

1. First Download " wpcom-crosspost.zip " Plugin to your Local Computer. (Click Download)

2. Then, Login to your " yourdomain.com/wp-admin " Dashboard.

3. Then, Click on " Plugins " + " Add New " from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse " wpcom-crosspost.zip "  Downloaded plugin from your computer, Where you downloaded wpcom-crosspost.zip According to Step – 1 Above then, click on " Install Now"

6. Now, Click on " Active Plugin"

7. Then, See left sidemenu. " WP.com Cross-Post " folder is added on left sidemenu. Now, Click on " WP.com Cross-Post " folder.

   Noted that: If you do not see " WP.com Cross-Post " folder on left sidemenu then, see at left sidemenu " Settings " or " Tools ".

8. Now you configure yourself oR Watch video tutorial below about  WP.com Cross-Post Configurtions and Settings or How to work " WP.com Cross-Post " in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to " Plugins " + " Installed Plugin " from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find " WP.com Cross-Post " Activated Plugin from Plugin List.
4. Then, Click on " Settings " from Plugin that is WP.com Cross-Post
5. Now, Edit/Add/Config the setting and Click on " Save Changes " button,

Automatic installation

Automatic installation is the easiest option as WordPress handles the file transfers itself and you don’t need to leave your web browser. To do an automatic install of this plugin, log in to your WordPress dashboard, navigate to the Plugins menu and click Add New.

In the search field type “WP.com Cross-Post” and click Search Plugins. Once you’ve found the plugin you can view details about it such as the point release, rating and description. Most importantly of course, you can install it by simply clicking “Install Now”.

Manual installation

The manual installation method involves downloading the plugin and uploading it to your webserver via your favourite FTP application. The WordPress codex contains instructions on how to do this here .

Configuration

Go to Settings > WP.com X-Post and fill in the Client ID and Secret. If you don’t have them, click on the button “Create WordPress.com App” to create an app on WordPress.com.

Save the changes. The button “Connect to WordPress.com” will appear. Click on it to connect your self-hosted site to WordPress.com and choose the blog you want to sync with.

One hour after the first activation there will be the first sync.