fix: add dependency error handling

README.md

@@ -41,7 +41,7 @@ Table:
 | Simple Ts Esm                        | ✅      |
 | Simple Js Esm                        | ✅      |
 
-Last test run date: 10/02/24 03:35:49 AM
+Last test run date: 10/03/24 03:35:41 AM
 ## Quick Installation
 
 For those who just want to use Azion Bundler in their project without contributing to the development, you can install it directly from npm.

lib/env/vulcan.env.js

@@ -128,6 +128,33 @@ async function readVulcanEnv(scope = 'local') {
     throw error;
   }
 }
+
+/**
+ * Handles dependency-related errors and provides user feedback.
+ * @param {Error} error - The error object caught during module loading.
+ * @param {string} configPath - The path to the configuration file.
+ * @throws {Error} Rethrows the original error if it's not a dependency issue.
+ */
+function handleDependencyError(error, configPath) {
+  if (error.code === 'ERR_MODULE_NOT_FOUND') {
+    const missingPackage = error.message.match(/'([^']+)'/)?.[1];
+    if (missingPackage) {
+      feedback.error(
+        `Missing dependency: ${missingPackage}. Please install it using 'npm install ${missingPackage}' or 'yarn add ${missingPackage}'.`,
+      );
+    } else {
+      feedback.error(
+        `A required dependency is missing. Please ensure all dependencies are installed.`,
+      );
+    }
+    debug.error(
+      `Failed to load configuration from ${configPath}. ${error.message}`,
+    );
+  } else {
+    throw error;
+  }
+}
+
 /**
  * Loads the azion.config file and returns the entire configuration object.
  * @async
@@ -205,6 +232,10 @@ async function loadAzionConfig(configPath) {
 
     return configModule.default || configModule;
   } catch (error) {
+    if (error.code === 'ERR_MODULE_NOT_FOUND') {
+      handleDependencyError(error, configPath);
+      return null;
+    }
     debug.error(error);
     feedback.error(Messages.errors.file_doesnt_exist(configPath));
     throw error;