g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_2_1_1/lv_100ask_demo_course_2_1_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_2_2_2/lv_100ask_demo_course_2_2_2.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_2_2_3/lv_100ask_demo_course_2_2_3.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_2_2_4/lv_100ask_demo_course_2_2_4.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_2_2_5/lv_100ask_demo_course_2_2_5.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_2_2_6/lv_100ask_demo_course_2_2_6.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_10_1/lv_100ask_demo_course_3_10_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_10_1/lv_100ask_font_source_han_mono_extra_light_32.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_10_3/lv_100ask_demo_course_3_10_3.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_11_1/lv_100ask_demo_course_3_11_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_11_2/lv_100ask_demo_course_3_11_2.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_11_3/lv_100ask_demo_course_3_11_3.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_12_1/lv_100ask_demo_course_3_12_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_12_2/lv_100ask_demo_course_3_12_2.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_13_1/lv_100ask_demo_course_3_13_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_14_1/lv_100ask_demo_course_3_14_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_14_2/lv_100ask_demo_course_3_14_2.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_1_1/lv_100ask_demo_course_3_1_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_1_2/lv_100ask_demo_course_3_1_2.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_2_1/lv_100ask_demo_course_3_2_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_3_1/lv_100ask_demo_course_3_3_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_4_1/lv_100ask_demo_course_3_4_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_5_1/lv_100ask_demo_course_3_5_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_6_1/lv_100ask_demo_course_3_6_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_7_1/lv_100ask_demo_course_3_7_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_8_1/lv_100ask_demo_course_3_8_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_3_9_1/lv_100ask_demo_course_3_9_1.o: No such file or directory
g++: error: obj/Debug/lv_100ask_teach_demos/src/lv_100ask_demo_course_6_1_1/lv_100ask_demo_course_6_1_1.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/img_benchmark_cogwheel_alpha16.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/img_benchmark_cogwheel_argb.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/img_benchmark_cogwheel_chroma_keyed.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/img_benchmark_cogwheel_indexed16.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/img_benchmark_cogwheel_rgb.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/lv_font_bechmark_montserrat_12_compr_az.c.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/lv_font_bechmark_montserrat_16_compr_az.c.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/assets/lv_font_bechmark_montserrat_28_compr_az.c.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_benchmark/lv_demo_benchmark.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_keypad_encoder/lv_demo_keypad_encoder.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_corner_large.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_list_pause.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_list_pause_large.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_list_play.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_list_play_large.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_loop.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_loop_large.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_next.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_next_large.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_pause.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_pause_large.o: No such file or directory
g++: error: obj/Debug/lv_demos/src/lv_demo_music/assets/img_lv_demo_music_btn_play.o: No such file or directory
Process terminated with status 1 (0 minute(s), 4 second(s))
50 error(s), 0 warning(s) (0 minute(s), 4 second(s))
请问有人知道是为什么嘛