diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..b7eee9f
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,52 @@
+name: Test Jalno Base
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      fail-fast: true
+      matrix:
+        php: ['8.0', '8.1', '8.2']
+
+    name: PHP ${{ matrix.php }}
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Checkout jalno/PhpParser
+        uses: actions/checkout@v4
+        with:
+          repository: jalno/PhpParser
+          path: packages/PhpParser
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+
+      - name: Validate defaultClassMap.php
+        run: php -l packages/base/defaultClassMap.php
+
+      - name: Validate package.json
+        run: php -r 'json_decode(file_get_contents("packages/base/package.json"), false, 512, JSON_THROW_ON_ERROR);'
+
+      - name: Validate lang file langs/en_US.json
+        run: php -r 'json_decode(file_get_contents("packages/base/langs/en_US.json"), false, 512, JSON_THROW_ON_ERROR);'
+
+      - name: Validate lang file langs/fa_IR.json
+        run: php -r 'json_decode(file_get_contents("packages/base/langs/fa_IR.json"), false, 512, JSON_THROW_ON_ERROR);'
+
+      - name: PHPStan
+        uses: php-actions/phpstan@v3
+        with:
+          php_version: ${{ matrix.php }}
+          path: ./
+          configuration: packages/base/phpstan.neon
diff --git a/packages/base/libraries/background/Exceptions/CannotStartProcessException.php b/packages/base/libraries/background/Exceptions/CannotStartProcessException.php
index 619f215..8191640 100644
--- a/packages/base/libraries/background/Exceptions/CannotStartProcessException.php
+++ b/packages/base/libraries/background/Exceptions/CannotStartProcessException.php
@@ -5,8 +5,11 @@
 use packages\base\Process;
 
 class CannotStartProcessException extends Exception {
-	public function __construct(public readonly Process $process, string $message = "can not start process") {
+	protected Process $process;
+
+	public function __construct(Process $process, string $message = "can not start process") {
 		parent::__construct($message);
+		$this->process = $process;
 	}
 
 	public function getProcess(): Process
diff --git a/packages/base/libraries/background/Exceptions/NotStartedProcessException.php b/packages/base/libraries/background/Exceptions/NotStartedProcessException.php
index 4bfcd93..d502343 100644
--- a/packages/base/libraries/background/Exceptions/NotStartedProcessException.php
+++ b/packages/base/libraries/background/Exceptions/NotStartedProcessException.php
@@ -5,8 +5,11 @@
 use packages\base\Process;
 
 class NotStartedProcessException extends Exception {
-	public function __construct(public readonly Process $process, string $message = "process does not started") {
+	protected Process $process;
+
+	public function __construct(Process $process, string $message = "process does not started") {
 		parent::__construct($message);
+		$this->process = $process;
 	}
 
 	public function getProcess(): Process
diff --git a/packages/base/libraries/frontend/frontend.php b/packages/base/libraries/frontend/frontend.php
index 28e17e3..c458f11 100644
--- a/packages/base/libraries/frontend/frontend.php
+++ b/packages/base/libraries/frontend/frontend.php
@@ -1,10 +1,10 @@
 <?php
 namespace packages\base;
-use \packages\base\frontend;
 use \packages\base\IO\directory;
 use \packages\base\IO\file;
 use \packages\base\json;
 use \packages\base\frontend\source;
+
 class frontend{
 	private static function getWebpackResult():array{
 		$base = packages::package('base');