diff --git a/client/src/main/kotlin/org/hso/texturesyncclient/controller/RootController.kt b/client/src/main/kotlin/org/hso/texturesyncclient/controller/RootController.kt
index 35d5bff..8a9e61e 100644
--- a/client/src/main/kotlin/org/hso/texturesyncclient/controller/RootController.kt
+++ b/client/src/main/kotlin/org/hso/texturesyncclient/controller/RootController.kt
@@ -4,6 +4,7 @@ import javafx.application.Platform
 import javafx.collections.ObservableList
 import javafx.event.EventHandler
 import javafx.stage.DirectoryChooser
+import org.hso.texturesyncclient.alerts.JFXInfoAlert
 import org.hso.texturesyncclient.alerts.JFXOkayCancelAlert
 import org.hso.texturesyncclient.controller.net.AutoConnect
 import org.hso.texturesyncclient.controller.net.Connection
@@ -26,11 +27,11 @@ import javax.imageio.ImageIO
 import java.util.UUID
 import java.nio.file.Files
 import java.io.FileOutputStream
+import java.io.IOException
 import java.text.SimpleDateFormat
 import java.text.DateFormat
 
 
-
 class RootController : Controller() {
 
     private val mvc: MainViewController by inject()
@@ -175,15 +176,32 @@ class RootController : Controller() {
         directoryChooser.title = "Export Verzeichnis wählen"
         directoryChooser.initialDirectory = File(lastExportDir)
 
+
+        val alertExport = JFXInfoAlert(
+            "Exporterien fehlgeschlagen",
+            "Mögliche Ursachen:" +
+                    "\n-Datei existiert bereits" +
+                    "\n-Ordner nicht beschreibbar",
+            "-fx-button-type: RAISED; -fx-background-color: #2b7bbb; -fx-text-fill: #000000;"
+        )
+
         val dir = directoryChooser.showDialog(primaryStage)
         if (dir != null) {
             val extension = if (data.format == TextureFormat.PNG) ".png" else ".jpeg" //get file format
             val filePath = "$dir/${data.name}$extension" //build absolute exported texture path
             val exportedFile = File(filePath) //create file
-            val fileout = FileOutputStream(exportedFile)
-            fileout.write(con.getTextureFile(data.textureHash)) //write bytes in file
-            fileout.close()
 
+            if (exportedFile.exists()) {
+                alertExport.showAndWait()
+            } else {
+                try {
+                    val fileout = FileOutputStream(exportedFile)
+                    fileout.write(con.getTextureFile(data.textureHash)) //write bytes in file fileout.close()
+                    fileout.close()
+                } catch (e: IOException) {
+                    alertExport.showAndWait()
+                }
+            }
             lastExportDir = dir.absolutePath //store last user chosen dir
         }
     }
@@ -200,7 +218,12 @@ class RootController : Controller() {
 
 
 
-        mvc.setMeta(data.name, "${data.resolution.first.toString()}px x ${data.resolution.second.toString()}px", data.format.toString(), sdf.format(data.addedOn.time))
+        mvc.setMeta(
+            data.name,
+            "${data.resolution.first.toString()}px x ${data.resolution.second.toString()}px",
+            data.format.toString(),
+            sdf.format(data.addedOn.time)
+        )
         mvc.setTags(data.tags.toList().observable())
         selectedTexture = data
     }