fix: add check and trigger error if autoload is not found (#21)

* fix: add check and trigger error if autoload is not found

* fix: update changelog

---------

Co-authored-by: troychaplin <[email protected]>

Author: ryanwelcher

CHANGELOG.md

@@ -7,14 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Prefix the change with one of these keywords:
 
-- _Added_: for new features.
-- _Breaking_: for higher visibility of breaking changes
-- _Changed_: for changes in existing functionality.
-- _Deprecated_: for soon-to-be removed features.
-- _Removed_: for now removed features.
-- _Fixed_: for any bug fixes.
-- _Security_: in case of vulnerabilities.
+-   _Added_: for new features.
+-   _Breaking_: for higher visibility of breaking changes
+-   _Changed_: for changes in existing functionality.
+-   _Deprecated_: for soon-to-be removed features.
+-   _Removed_: for now removed features.
+-   _Fixed_: for any bug fixes.
+-   _Security_: in case of vulnerabilities.
 
 ## [Unreleased]
 
-- _Fixed_: Missing wp-env script and some documentation changes.
+-   _Fixed_: Check for autoload.php before requiring it.
+-   _Fixed_: Missing wp-env script and some documentation changes.

plugin.php

@@ -22,8 +22,12 @@
 define( 'MULTI_BLOCK_STARTER_URL', plugin_dir_url( __FILE__ ) );
 
 // Include Composer's autoload file.
-require_once plugin_dir_path( __FILE__ ) . 'vendor/autoload.php';
-
+if ( file_exists( plugin_dir_path( __FILE__ ) . 'vendor/autoload.php' ) ) {
+	require_once plugin_dir_path( __FILE__ ) . 'vendor/autoload.php';
+} else {
+	wp_trigger_error( ' Multi Block Starter Plugin: Composer autoload file not found. Please run `composer install` to install the dependencies.', E_USER_ERROR );
+	return;
+}
 // Instantiate the classes.
 $multi_block_starter_classes = array(
 	\Multi_Block_Starter\Enqueues::class,