[PageBuilder](https://github.com/Hieromon/PageBuilder) v1.4.1 or later is required to use HTTP authentication with AutoConnect.
[PageBuilder](https://github.com/Hieromon/PageBuilder) v1.4.0 or later is required to use HTTP authentication with AutoConnect. Also, v1.4.2 or later is required to eliminate SPIFFS, which is deprecated as a file system for ESP8266 module.
!!! warning "Can not use ESP32 arduino core 1.0.4 stable release"
For ESP32, Arduino core 1.0.4 stable has a bug for HTTP authentication. The upstream of the master is recommended. (or use 1.0.5 later)
The [PageBuilder](https://github.com/Hieromon/PageBuilder) library to build HTML for ESP8266WebServer is needed.
To install the PageBuilder library into your Arduino IDE, you can use the *Library Manager*. Select the board of ESP8266 series in the Arduino IDE, open the library manager and search keyword '**PageBuilder**' with the topic '**Communication**', then you can see the *PageBuilder*. The latest version is required **1.4.0****later**.[^1]
[^1]:Since AutoConnect v1.2.0, PageBuilder v1.4.0 later is required.
To install the PageBuilder library into your Arduino IDE, you can use the *Library Manager*. Select the board of ESP8266 series in the Arduino IDE, open the library manager and search keyword '**PageBuilder**' with the topic '**Communication**', then you can see the *PageBuilder*. The latest version is required **1.4.2****later**.[^1]
[^1]:Since AutoConnect v1.2.0, PageBuilder v1.4.2 later is required.