fatal error: 'SDL2/SDL.h' file not found

[modi12jin]

make: make -j4
[ 30%] Built target lvgl
[ 30%] Building C object lv_drivers/CMakeFiles/lv_drivers.dir/sdl/sdl_common.c.o
[ 30%] Building C object lv_drivers/CMakeFiles/lv_drivers.dir/sdl/sdl.c.o
[ 40%] Built target lvgl_demos
[ 69%] Built target lvgl_examples
In file included from /home/jin/文档/lvgl-template-web/lv_drivers/sdl/sdl.c:50:
/home/jin/文档/lvgl-template-web/lv_drivers/sdl/sdl_common_internal.h:21:10: fatal error: 'SDL2/SDL.h' file not found
#include SDL_INCLUDE_PATH 
         ^~~~~~~~~~~~~~~~
/home/jin/文档/lvgl-template-web/lv_drv_conf.h:92:29: note: expanded from macro 'SDL_INCLUDE_PATH'
#define SDL_INCLUDE_PATH    <SDL2/SDL.h>    /*Eclipse: <SDL2/SDL.h>    Visual Studio: <SDL.h>*/
                            ^~~~~~~~~~~~
<scratch space>:56:1: note: expanded from here
<SDL2/SDL.h>
^~~~~~~~~~~~
1 error generated.
emcc: error: '/usr/bin/clang-13 -target wasm32-unknown-emscripten -DEMSCRIPTEN -D__EMSCRIPTEN_major__=3 -D__EMSCRIPTEN_minor__=1 -D__EMSCRIPTEN_tiny__=5 -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -D_LIBCPP_ABI_VERSION=2 -fno-threadsafe-statics -Dunix -D__unix -D__unix__ -Werror=implicit-function-declaration -Xclang -iwithsysroot/include/SDL --sysroot=/usr/share/emscripten/cache/sysroot -Xclang -iwithsysroot/include/compat -DLV_CONF_INCLUDE_SIMPLE -DLV_LVGL_H_INCLUDE_SIMPLE -I/home/jin/文档/lvgl-template-web -isystem /home/jin/文档/lvgl-template-web/lv_drivers -isystem /home/jin/文档/lvgl-template-web/lvgl -MD -MT lv_drivers/CMakeFiles/lv_drivers.dir/sdl/sdl.c.o -MF CMakeFiles/lv_drivers.dir/sdl/sdl.c.o.d -c /home/jin/文档/lvgl-template-web/lv_drivers/sdl/sdl.c -o CMakeFiles/lv_drivers.dir/sdl/sdl.c.o' failed (returned 1)
In file included from /home/jin/文档/lvgl-template-web/lv_drivers/sdl/sdl_common.c:8:
/home/jin/文档/lvgl-template-web/lv_drivers/sdl/sdl_common_internal.h:21:10: fatal error: 'SDL2/SDL.h' file not found
#include SDL_INCLUDE_PATH 
         ^~~~~~~~~~~~~~~~
/home/jin/文档/lvgl-template-web/lv_drv_conf.h:92:29: note: expanded from macro 'SDL_INCLUDE_PATH'
#define SDL_INCLUDE_PATH    <SDL2/SDL.h>    /*Eclipse: <SDL2/SDL.h>    Visual Studio: <SDL.h>*/
                            ^~~~~~~~~~~~
<scratch space>:56:1: note: expanded from here
<SDL2/SDL.h>
^~~~~~~~~~~~
1 error generated.
make[2]: *** [lv_drivers/CMakeFiles/lv_drivers.dir/build.make:317：lv_drivers/CMakeFiles/lv_drivers.dir/sdl/sdl.c.o] 错误 1
make[2]: *** 正在等待未完成的任务....
emcc: error: '/usr/bin/clang-13 -target wasm32-unknown-emscripten -DEMSCRIPTEN -D__EMSCRIPTEN_major__=3 -D__EMSCRIPTEN_minor__=1 -D__EMSCRIPTEN_tiny__=5 -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -D_LIBCPP_ABI_VERSION=2 -fno-threadsafe-statics -Dunix -D__unix -D__unix__ -Werror=implicit-function-declaration -Xclang -iwithsysroot/include/SDL --sysroot=/usr/share/emscripten/cache/sysroot -Xclang -iwithsysroot/include/compat -DLV_CONF_INCLUDE_SIMPLE -DLV_LVGL_H_INCLUDE_SIMPLE -I/home/jin/文档/lvgl-template-web -isystem /home/jin/文档/lvgl-template-web/lv_drivers -isystem /home/jin/文档/lvgl-template-web/lvgl -MD -MT lv_drivers/CMakeFiles/lv_drivers.dir/sdl/sdl_common.c.o -MF CMakeFiles/lv_drivers.dir/sdl/sdl_common.c.o.d -c /home/jin/文档/lvgl-template-web/lv_drivers/sdl/sdl_common.c -o CMakeFiles/lv_drivers.dir/sdl/sdl_common.c.o' failed (returned 1)
make[2]: *** [lv_drivers/CMakeFiles/lv_drivers.dir/build.make:332：lv_drivers/CMakeFiles/lv_drivers.dir/sdl/sdl_common.c.o] 错误 1
make[1]: *** [CMakeFiles/Makefile2:227：lv_drivers/CMakeFiles/lv_drivers.dir/all] 错误 2
make: *** [Makefile:136：all] 错误 2
emmake: error: 'make -j4' failed (returned 2)

When I run the "emmake make -j4" command, I get an error "Cannot find SDL"

My computer is Ubuntu 22.04 and SDL2 has been installed.