diff --git a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/SimctlListData.kt b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/SimctlListData.kt
index b999f9c60d..2a765e197e 100644
--- a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/SimctlListData.kt
+++ b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/SimctlListData.kt
@@ -11,52 +11,52 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 internal class SimctlListData(
-    val devicetypes: List<DeviceTypeData>,
+    val devicetypes: List<DeviceTypeData> = emptyList(),
     val runtimes: List<RuntimeData>,
     val devices: Map<String, List<DeviceData>>,
-    val pairs: Map<String, WatchAndPhonePairData>,
+    val pairs: Map<String, WatchAndPhonePairData> = emptyMap(),
 )
 
 @Serializable
 internal class DeviceTypeData(
-    val name: String,
-    val minRuntimeVersion: Long,
-    val bundlePath: String,
-    val maxRuntimeVersion: Long,
-    val identifier: String,
-    val productFamily: String
+    val name: String? = null,
+    val minRuntimeVersion: Long? = null,
+    val bundlePath: String? = null,
+    val maxRuntimeVersion: Long? = null,
+    val identifier: String? = null,
+    val productFamily: String? = null
 )
 
 @Serializable
 internal class RuntimeData(
-    val name: String,
-    val bundlePath: String,
-    val buildversion: String,
-    val runtimeRoot: String,
+    val name: String? = null,
+    val bundlePath: String? = null,
+    val buildversion: String? = null,
+    val runtimeRoot: String? = null,
     val identifier: String,
     val version: String,
-    val isAvailable: Boolean,
+    val isAvailable: Boolean? = null,
     val supportedDeviceTypes: List<SupportedDeviceTypeData>
 )
 
 @Serializable
 internal class SupportedDeviceTypeData(
-    val bundlePath: String,
-    val name: String,
+    val bundlePath: String? = null,
+    val name: String? = null,
     val identifier: String,
-    val productFamily: String
+    val productFamily: String? = null
 )
 
 @Serializable
 internal class DeviceData(
     val name: String,
     val availabilityError: String? = null,
-    val dataPath: String,
-    val dataPathSize: Long,
-    val logPath: String,
+    val dataPath: String? = null,
+    val dataPathSize: Long? = null,
+    val logPath: String? = null,
     val udid: String,
-    val isAvailable: Boolean,
-    val deviceTypeIdentifier: String,
+    val isAvailable: Boolean? = null,
+    val deviceTypeIdentifier: String? = null,
     val state: String,
 )
 
@@ -65,13 +65,13 @@ internal val DeviceData.booted: Boolean
 
 @Serializable
 internal class WatchAndPhonePairData(
-    val watch: DeviceInPairData,
-    val phone: DeviceInPairData
+    val watch: DeviceInPairData? = null,
+    val phone: DeviceInPairData? = null
 )
 
 @Serializable
 internal class DeviceInPairData(
-    val name: String,
-    val udid: String,
-    val state: String,
+    val name: String? = null,
+    val udid: String? = null,
+    val state: String? = null,
 )
diff --git a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/registerSimulatorTasks.kt b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/registerSimulatorTasks.kt
index 04253433c5..fda96082e1 100644
--- a/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/registerSimulatorTasks.kt
+++ b/gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/experimental/uikit/internal/registerSimulatorTasks.kt
@@ -34,7 +34,24 @@ fun Project.registerSimulatorTasks(
         taskInstallXcodeGen = taskInstallXcodeGen,
     )
 
+    val taskSimulatorDeleteUnavailable = tasks.composeIosTask<AbstractComposeIosTask>("iosSimulatorDeleteUnavailable$id") {
+        val condition = { device: DeviceData -> device.name == deviceName && device.state.contains("unavailable") }
+        onlyIf {
+            getSimctlListData().devices.map { it.value }.flatten().any(condition)
+        }
+        doLast {
+            val device = getSimctlListData().devices.map { it.value }.flatten().first(condition)
+
+            runExternalTool(
+                MacUtils.xcrun,
+                listOf("simctl", "delete", device.udid)
+            )
+        }
+    }
+
+
     val taskCreateSimulator = tasks.composeIosTask<AbstractComposeIosTask>("iosSimulatorCreate$id") {
+        dependsOn(taskSimulatorDeleteUnavailable)
         onlyIf { getSimctlListData().devices.map { it.value }.flatten().none { it.name == deviceName } }
         doFirst {
             val availableRuntimes = getSimctlListData().runtimes.filter { runtime ->
@@ -49,10 +66,10 @@ fun Project.registerSimulatorTasks(
     }
 
     val taskBootSimulator = tasks.composeIosTask<AbstractComposeIosTask>("iosSimulatorBoot$id") {
+        dependsOn(taskCreateSimulator)
         onlyIf {
             getSimctlListData().devices.map { it.value }.flatten().any { it.name == deviceName && it.booted.not() }
         }
-        dependsOn(taskCreateSimulator)
         doLast {
             val device = getSimctlListData().devices.map { it.value }.flatten().firstOrNull { it.name == deviceName }
                 ?: error("device '$deviceName' not found")