diff --git a/platform/external-system-api/src/com/intellij/openapi/externalSystem/model/task/ExternalSystemTaskId.java b/platform/external-system-api/src/com/intellij/openapi/externalSystem/model/task/ExternalSystemTaskId.java
index ba88c5288cff..ea63c26c88ff 100644
--- a/platform/external-system-api/src/com/intellij/openapi/externalSystem/model/task/ExternalSystemTaskId.java
+++ b/platform/external-system-api/src/com/intellij/openapi/externalSystem/model/task/ExternalSystemTaskId.java
@@ -62,7 +62,7 @@ public class ExternalSystemTaskId implements Serializable {
 
   @NotNull
   public static String getProjectId(@NotNull Project project) {
-    return project.getName() + ":" + project.getLocationHash();
+    return project.isDisposed() ? project.getName() : project.getName() + ":" + project.getLocationHash();
   }
 
   @Nullable
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/execution/ExternalSystemRunConfiguration.java b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/execution/ExternalSystemRunConfiguration.java
index 5bf62b1cc5c5..60c05b756f6f 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/execution/ExternalSystemRunConfiguration.java
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/execution/ExternalSystemRunConfiguration.java
@@ -138,6 +138,8 @@ public class ExternalSystemRunConfiguration extends LocatableConfigurationBase {
     @Nullable
     @Override
     public ExecutionResult execute(Executor executor, @NotNull ProgramRunner runner) throws ExecutionException {
+      if(myProject.isDisposed()) return null;
+
       ExternalSystemUtil.updateRecentTasks(new ExternalTaskExecutionInfo(mySettings.clone(), executor.getId()), myProject);
       ConsoleView console = new TextConsoleBuilderImpl(myProject).getConsole();
       final List<ExternalTaskPojo> tasks = ContainerUtilRt.newArrayList();
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/autoimport/ExternalSystemAutoImporter.java b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/autoimport/ExternalSystemAutoImporter.java
index dd6fe984409b..9f30aa228f2b 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/autoimport/ExternalSystemAutoImporter.java
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/autoimport/ExternalSystemAutoImporter.java
@@ -295,7 +295,7 @@ public class ExternalSystemAutoImporter implements BulkFileListener, DocumentLis
   }
 
   private void refreshFilesIfNecessary() {
-    if (myFilesToRefresh.isEmpty()) {
+    if (myFilesToRefresh.isEmpty() || myProject.isDisposed()) {
       return;
     }
 
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/wizard/AbstractExternalProjectImportBuilder.java b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/wizard/AbstractExternalProjectImportBuilder.java
index 4a406120d40d..d1969cfd7e49 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/wizard/AbstractExternalProjectImportBuilder.java
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/wizard/AbstractExternalProjectImportBuilder.java
@@ -156,6 +156,7 @@ public abstract class AbstractExternalProjectImportBuilder<C extends AbstractImp
                 new Task.Backgroundable(project, progressText, false) {
                   @Override
                   public void run(@NotNull final ProgressIndicator indicator) {
+                    if(project.isDisposed()) return;
                     ExternalSystemResolveProjectTask task
                       = new ExternalSystemResolveProjectTask(myExternalSystemId, project, projectSettings.getExternalProjectPath(), false);
                     task.execute(indicator, ExternalSystemTaskNotificationListener.EP_NAME.getExtensions());
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/ExternalSystemUtil.java b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/ExternalSystemUtil.java
index 34de0421d006..6e0536d48371 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/ExternalSystemUtil.java
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/ExternalSystemUtil.java
@@ -437,6 +437,8 @@ public class ExternalSystemUtil {
       @SuppressWarnings({"ThrowableResultOfMethodCallIgnored", "IOResourceOpenedButNotSafelyClosed"})
       @Override
       public void execute(@NotNull ProgressIndicator indicator) {
+        if(project.isDisposed()) return;
+
         ExternalSystemResolveProjectTask task
           = new ExternalSystemResolveProjectTask(externalSystemId, project, externalProjectPath, isPreviewMode);