Update

src/ftxui/component/screen_interactive.cpp

@@ -19,6 +19,7 @@
 #include <stack>  // for stack
 #include <string>
 #include <thread>       // for thread, sleep_for
+#include <thread>       // for thread, sleep_for
 #include <tuple>        // for _Swallow_assign, ignore
 #include <type_traits>  // for decay_t
 #include <utility>      // for move, swap

src/ftxui/core/task_test.cpp

@@ -8,6 +8,7 @@
 
 #include <gtest/gtest.h>
 
+#include <thread>  // for sleep_for
 #include "task_runner.hpp"
 
 namespace ftxui::task {
@@ -92,4 +93,3 @@ TEST(TaskTest, RunDelayedTask) {
 
 } // namespace ftxui::task
 
-