I also could not get this to work by following the directions in the readme / menuconfig. I did get file_serving to use the sdcard by doing the following. 1. enable sdcard in menuconfig 2. in main.c, line 87 change the esp_vfs_spiffs_conf_t struct to use /sdcard esp_vfs_spiffs_conf_t conf = { .base...

我遇到了同类型的问题：https://www.esp32.com/viewtopic.php?t=23724
但原帖没给任何有效的解答，附件为我的截图。
同时，我发现，如果通过命令行手动下载，在原下载指令中加入：'--no-stub'，就可解决该问题。但我去menuconfig中对【Serial flasher config】中勾选【Disable download stub】重编译后，下载时，该参数并没有对下载指令生效！！