diff --git a/client/.idea/deploymentTargetDropDown.xml b/client/.idea/deploymentTargetDropDown.xml
index 8731337..bf3ae45 100644
--- a/client/.idea/deploymentTargetDropDown.xml
+++ b/client/.idea/deploymentTargetDropDown.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="deploymentTargetDropDown">
-    <runningDeviceTargetSelectedWithDropDown>
+    <targetSelectedWithDropDown>
       <Target>
-        <type value="RUNNING_DEVICE_TARGET" />
+        <type value="QUICK_BOOT_TARGET" />
         <deviceKey>
           <Key>
-            <type value="SERIAL_NUMBER" />
-            <value value="LGH8702b43aa49" />
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="$USER_HOME$/.android/avd/new_device.avd" />
           </Key>
         </deviceKey>
       </Target>
-    </runningDeviceTargetSelectedWithDropDown>
-    <timeTargetWasSelectedWithDropDown value="2023-07-25T09:59:23.293322749Z" />
+    </targetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2023-07-25T10:44:56.638251709Z" />
   </component>
 </project>
\ No newline at end of file
diff --git a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/exporter/compose/Configuration.kt b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/exporter/compose/Configuration.kt
index 4803881..5d226f6 100644
--- a/client/app/src/main/java/com/birdthedeveloper/prometheus/android/exporter/compose/Configuration.kt
+++ b/client/app/src/main/java/com/birdthedeveloper/prometheus/android/exporter/compose/Configuration.kt
@@ -21,9 +21,9 @@ private const val defaultRemoteWriteExportInterval: Int = 120 // seconds
 // serialization classes for parsing YAML configuration file
 @Serializable
 data class PromConfigFile(
-    val prometheus_server: PromServerConfigFile?,
-    val pushprox: PushProxConfigFile?,
-    val remote_write: RemoteWriteConfigFile?,
+    val prometheus_server: PromServerConfigFile? = null,
+    val pushprox: PushProxConfigFile? = null,
+    val remote_write: RemoteWriteConfigFile? = null,
 ) {
     fun toPromConfiguration(): PromConfiguration {
         return PromConfiguration(