diff --git a/android/.idea/caches/build_file_checksums.ser b/android/.idea/caches/build_file_checksums.ser
index 427aae0..91ff37c 100644
Binary files a/android/.idea/caches/build_file_checksums.ser and b/android/.idea/caches/build_file_checksums.ser differ
diff --git a/android/.idea/misc.xml b/android/.idea/misc.xml
index 99202cc..c0f68ed 100644
--- a/android/.idea/misc.xml
+++ b/android/.idea/misc.xml
@@ -25,7 +25,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/android/.idea/modules.xml b/android/.idea/modules.xml
index 9bbbabb..c734d99 100644
--- a/android/.idea/modules.xml
+++ b/android/.idea/modules.xml
@@ -3,7 +3,6 @@
   <component name="ProjectModuleManager">
     <modules>
       <module fileurl="file://$PROJECT_DIR$/file_picker.iml" filepath="$PROJECT_DIR$/file_picker.iml" />
-      <module fileurl="file://$PROJECT_DIR$/file_picker.iml" filepath="$PROJECT_DIR$/file_picker.iml" />
     </modules>
   </component>
 </project>
\ No newline at end of file
diff --git a/android/build.gradle b/android/build.gradle
index 1e9b1b1..2d1b841 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -35,4 +35,5 @@ android {
 
 dependencies {
     implementation 'com.android.support:appcompat-v7:27.0.0'
+    compileOnly files('/Users/miguelruivo/DevTools/flutter/bin/cache/artifacts/engine/android-arm64/flutter.jar')
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index 322214b..4629c3d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,6 +4,7 @@ version: 1.0.0
 author: Miguel Ruivo <miguelpruivo@outlook.com>
 homepage: https://github.com/miguelpruivo/plugins_flutter_file_picker
 
+
 dependencies:
   flutter:
     sdk: flutter
@@ -11,7 +12,7 @@ dependencies:
   meta: ^1.1.5
 
 environment:
-  sdk: ">=1.19.0 <3.0.0"
+  sdk: ">=2.0.0 <3.0.0"
 
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec