diff --git a/src/CompilerExtension.php b/src/CompilerExtension.php
index 103a508..6295ca8 100644
--- a/src/CompilerExtension.php
+++ b/src/CompilerExtension.php
@@ -18,11 +18,9 @@
 namespace BiuradPHP\DependencyInjection;
 
 use Nette;
-use Nette\DI\Compiler;
 use BiuradPHP\DependencyInjection\Config;
 use Nette\DI\CompilerExtension as NetteCompilerExtension;
 use BiuradPHP\DependencyInjection\Concerns\ExtensionDefinitionsHelper;
-use BiuradPHP\DependencyInjection\Interfaces\PassCompilerAwareInterface;
 
 /**
  * Configurator compiling extension.
@@ -34,7 +32,7 @@ abstract class CompilerExtension extends NetteCompilerExtension
 {
     /** @var ExtensionDefinitionsHelper|null */
     private $helper;
-    
+
     /**
      * @internal do not use this function
      */
@@ -43,18 +41,6 @@ public function getName()
         return $this->name;
     }
 
-    /** @return static */
-	public function setCompiler(Compiler $compiler, string $name)
-	{
-        $compiler = parent::setCompiler($compiler, $name);
-
-        if ($this instanceof PassCompilerAwareInterface) {
-            $this->addCompilerPasses($this->compiler);
-        }
-
-        return $compiler;
-	}
-
     /**
      * ContainerBuilder is a DI container that provides an API to easily describe services.
      *
@@ -70,7 +56,7 @@ public function getContainerBuilder(): Nette\DI\ContainerBuilder
      *
      * @return array An array of configuration or false if not found
      */
-    public function getExtensionConfig(string $name)
+    protected function getExtensionConfig(string $name)
     {
         try {
             $extensionConfigs = $this->compiler->getExtension($name);
@@ -91,12 +77,12 @@ public function getExtensionConfig(string $name)
 
 	protected function getHelper(): ExtensionDefinitionsHelper
 	{
-		if ($this->helper === null) {
-			$this->helper = new ExtensionDefinitionsHelper($this->compiler);
-		}
+        if ($this->helper === null) {
+            $this->helper = new ExtensionDefinitionsHelper($this->compiler);
+        }
 
-		return $this->helper;
-	}
+        return $this->helper;
+    }
 
     /**
      * Processes configuration data. Intended to be overridden by descendant.
diff --git a/src/Concerns/Compiler.php b/src/Concerns/Compiler.php
index 3291af2..00f1cca 100644
--- a/src/Concerns/Compiler.php
+++ b/src/Concerns/Compiler.php
@@ -24,6 +24,7 @@
 use Nette\DI\CompilerExtension, Nette\DI\DependencyChecker;
 use BiuradPHP\DependencyInjection\Exceptions\InvalidConfigurationException;
 use BiuradPHP\DependencyInjection\Interfaces\CompilerPassInterface;
+use BiuradPHP\DependencyInjection\Interfaces\PassCompilerAwareInterface;
 
 /**
  * DI container compiler.
@@ -149,6 +150,12 @@ public function hasExtension(string $name)
      */
     public function getCompilerPasses(): array
     {
+        // Backward compatability for Nette
+        foreach ($this->extensions as $name => $extension) {
+            if ($extension instanceof PassCompilerAwareInterface) {
+                $extension->addCompilerPasses($this);
+            }
+        }
         return $this->passConfig->getPasses();
     }
 
diff --git a/src/Concerns/ImportsLocator.php b/src/Concerns/ImportsLocator.php
new file mode 100644
index 0000000..c6fcada
--- /dev/null
+++ b/src/Concerns/ImportsLocator.php
@@ -0,0 +1,114 @@
+<?php
+
+/*
+ * This code is under BSD 3-Clause "New" or "Revised" License.
+ *
+ * PHP version 7 and above required
+ *
+ * @category  DependencyInjection
+ *
+ * @author    Divine Niiquaye Ibok <divineibok@gmail.com>
+ * @copyright 2019 Biurad Group (https://biurad.com/)
+ * @license   https://opensource.org/licenses/BSD-3-Clause License
+ *
+ * @link      https://www.biurad.com/projects/dependencyinjection
+ * @since     Version 0.1
+ */
+
+namespace BiuradPHP\DependencyInjection\Concerns;
+
+use Composer\Autoload\ClassLoader;
+use InvalidArgumentException;
+use Nette\DI\CompilerExtension;
+use Nette\NotSupportedException;
+use Nette\Utils\Strings;
+use RecursiveDirectoryIterator;
+use RecursiveIteratorIterator;
+use ReflectionClass;
+use ReflectionObject;
+use RuntimeException;
+use SplFileInfo;
+
+class ImportsLocator
+{
+    /**
+     * Returns the file path for a given compiler extension resource.
+     *
+     * A Resource can be a file or a directory.
+     *
+     * The resource name must follow the following pattern:
+     *
+     *     "@CompilerExtension/path/to/a/file.something"
+     *
+     * where CompilerExtension is the name of the nette-di extension
+     * and the remaining part is the relative path in the class.
+     *
+     * @param CompilerExtension $extension
+     * @param string $name
+     * @param bool $throw
+     *
+     * @return string The absolute path of the resource
+     *
+     * @throws InvalidArgumentException if the file cannot be found or the name is not valid
+     * @throws RuntimeException         if the name contains invalid/unsafe characters
+     * @throws NotSupportedException    if the $name doesn't match in $extension
+     */
+    public static function getLocation(CompilerExtension $extension, string $name, bool $throw = true)
+    {
+        if ('@' !== $name[0] && true === $throw) {
+            throw new InvalidArgumentException(sprintf('A resource name must start with @ ("%s" given).', $name));
+        }
+
+        if (false !== strpos($name, '..')) {
+            throw new RuntimeException(sprintf('File name "%s" contains invalid characters (..).', $name));
+        }
+
+        $path = '';
+        if (false !== strpos($bundleName = substr($name, 1), '/')) {
+            [$bundleName, $path] = explode('/', $bundleName, 2);
+        }
+
+        if (false === strpos(get_class($extension), $bundleName)) {
+            throw new NotSupportedException(sprintf('Resource path is not supported for %s', $bundleName));
+        }
+
+        /** @var RecursiveIteratorIterator|SplFileInfo[] $iterator */
+        $iterator = new RecursiveIteratorIterator(
+            new RecursiveDirectoryIterator($bundlePath = self::findComposerDirectory($extension)),
+            RecursiveIteratorIterator::LEAVES_ONLY
+        );
+
+        foreach ($iterator as $file) {
+            if (strlen($file->getPathname()) === strlen($bundlePath.$path) && file_exists($bundlePath.$path)) {
+                return strtr($file->getPathname(), ['\\' => '/']);
+            }
+        }
+
+        throw new InvalidArgumentException(sprintf('Unable to find file "%s".', $name));
+    }
+
+    /**
+     * @param CompilerExtension $extension
+     * 
+     * @return string
+     */
+    private static function findComposerDirectory(CompilerExtension $extension): string
+    {
+        $path = dirname((new ReflectionClass(ClassLoader::class))->getFileName());
+        $directory = dirname((new ReflectionObject($extension))->getFileName());
+
+        $packagist = json_decode(file_get_contents($path.'/installed.json'), true);
+
+        foreach ($packagist as $package) {
+            $packagePath = str_replace(['\\', '/'], DIRECTORY_SEPARATOR, dirname($path, 1) .'/'. $package['name']);
+            if (!Strings::startsWith($directory, $packagePath)) {
+                continue;
+            }
+            $pathPrefix = current($package['autoload']['psr-4'] ?? $package['autoload']['psr-0'] ?? $package['autoload']['classmap']);
+
+            return sprintf('%s/%s/', $packagePath, rtrim($pathPrefix, '/'));
+        }
+
+        return dirname($directory, 1).'/';
+    }
+}
diff --git a/src/Config/Adapter/IniAdapter.php b/src/Config/Adapter/IniAdapter.php
index aac2b00..53248b1 100644
--- a/src/Config/Adapter/IniAdapter.php
+++ b/src/Config/Adapter/IniAdapter.php
@@ -17,7 +17,7 @@
 
 namespace BiuradPHP\DependencyInjection\Config\Adapter;
 
-use BiuradPHP\Loader\Files\Adapters\IniAdapter as BiuradPHPIniAdapter;
+use BiuradPHP\Loader\Files\Adapters\IniFileAdapter as BiuradPHPIniAdapter;
 use Nette;
 
 /**