Undefined reference to `app_main'

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1

When trying to create a blank project, I always get undefined reference to 'app_main'. When I select Arduino as framework it works but not with idf. Maybe it is because of the new idf 5.X version? If yes, how to change that during project setup?

2

Can you pload your project files? (Without .pio folder)

3

Using VS Code Version: 1.80.1 (Universal)
Platformio: Core 6.1.9 Home 3.4.4

4

Can you replace the contents of the src/CMakeLists.txt with

idf_component_register(SRCS "main.c"
                    INCLUDE_DIRS ".")

?

5

Sadly gives me the same error:

/esp/esp-idf/components/freertos/port/port_common.c:135: undefined reference to `app_main'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.