# Tích hợp FacebookSDK - Open SSL not found

#### Vấn đề

[![image.png](https://knowledge.thanhdv.com/uploads/images/gallery/2025-07/scaled-1680-/8animage.png)](https://knowledge.thanhdv.com/uploads/images/gallery/2025-07/8animage.png)

[![image.png](https://knowledge.thanhdv.com/uploads/images/gallery/2025-07/scaled-1680-/zVwimage.png)](https://knowledge.thanhdv.com/uploads/images/gallery/2025-07/zVwimage.png)

#### Nguyên nhân

Do chưa cài đặt môi trường SSL và Java

#### Giải pháp

##### OpenSSL not found

1. Download and install OpenSSL.  
    [Win32/Win64 OpenSSL Installer for Windows - Shining Light Productions](http://slproweb.com/products/Win32OpenSSL.html)  
    Win32 OpenSSL v#.#.# (not Light)  
    OR Win64 OpenSSL v#.#.# (not Light)
2. Add the OpenSSL directory to your path.  
    <span style="white-space: pre-wrap;">Go to: </span>`<span class="editor-theme-code">Control Panel</span>`<span style="white-space: pre-wrap;"> → </span>`<span class="editor-theme-code">System</span>`<span style="white-space: pre-wrap;"> → </span>`<span class="editor-theme-code">Advanced system settings</span>`<span style="white-space: pre-wrap;"> → </span>`<span class="editor-theme-code">Environment Variables</span>`  
    <span style="white-space: pre-wrap;">Select the Variable </span>`<span class="editor-theme-code">Path</span>`<span style="white-space: pre-wrap;"> in the “System variables” window and click Edit.</span>
3. <span style="white-space: pre-wrap;">Add the path to your OpenSSL bin folder to the end of the “Variable value” text. e.g. I added </span>`<span class="editor-theme-code">;C:\Program Files\OpenSSL-Win64\bin</span>`<span style="white-space: pre-wrap;"> to the end of the value text.</span>  
    <span style="white-space: pre-wrap;">→ Take note, do not forget to add semi-colon </span>`<span class="editor-theme-code">;</span>`<span style="white-space: pre-wrap;"> before the </span>`<span class="editor-theme-code">C:/</span>`
4. Restart computer.

##### Keytool not found

1.