Error while compiling "Simple transaction" example

Hello, when I try to compile the example, I receive the following errors

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/inet.h => line 46 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/inet6.h => line 58 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/inet6.h => line 59 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 45 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 55 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 76 : unknown type name ‘u16_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 203 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 203 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 206 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 206 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip4_addr.h => line 234 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 54 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 59 : unknown type name ‘u16_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 64 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 77 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 80 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 86 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 96 : unknown type name ‘u8_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 99 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 101 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/sockets.h => line 108 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip6_addr.h => line 59 : unknown type name ‘u32_t’

[error] C:\Users\Marco\zerynth2\dist\r2.6.4\vhal\xtensa-lx106\esp8266/lwip/ip6_addr.h => line 69 : unknown type name ‘u32_t’

[error] Error in C natives [-] in [[C:\Users\Marco\zerynth2\dist\r2.6.4\stdlib\csrc\zsockets\zsockets_ssl_mbedtls.c] at line 0](javascript:app.open_marker(‘c:\users\marco\prova’,‘c:\users\marco\zerynth2\dist\r2.6.4\stdlib\csrc\zsockets\zsockets_ssl_mbedtls.c’,0))

I’m using NodeMcu board, I’ve already tried to include stdint library in these files, but not worked

hi @Marco2
I think it is not clear enough in the documentation, Please create a project.yml file inside you Zerynth project folder and put the following two lines in it:

config:
    ZERYNTH_SSL: true

this will enable the compilation of additional modules required for crypto related operations.
Let me know if the error persists.

Hi, I resolved those errors by including c_types.h file, which for unknown reasons was not included.

Now I have two new errors due to lack of esp_event.h file and FreeRTOS.h file, I tried to search them in repositories, but not found them

Where can I find these files?