After upgrading Espressiff32 to 3.0 undefined reference to PEM file

kotyara12 · January 31, 2021, 6:09pm

Good day.
Today I updated the Espressif 32 platform. After that, the project stopped building, due to the fact that the PEM file declared in platformio.ini became unavailable

maxgerhardt · January 31, 2021, 6:14pm

The build system has changed, see Add support for ESP-IDF v4.2 · Issue #455 · platformio/platform-espressif32 · GitHub for explanation and reasoning.

That embed_txtfiles platformio.ini directive is not needed anymore and it’s purely configured by ESP-IDFs build system. You need to add something to the src/CMakeLists.txt as shown in the official example

github.com

platformio/platform-espressif32/blob/cdaa0acad482466723845c731156b3bda9897d97/examples/espidf-aws-iot/src/CMakeLists.txt#L1-L11


      
          set(COMPONENT_SRCS "subscribe_publish_sample.c")
          set(COMPONENT_ADD_INCLUDEDIRS ".")
          
          

          
register_component()
          
          
if(CONFIG_EXAMPLE_EMBEDDED_CERTS)
          target_add_binary_data(${COMPONENT_TARGET} "certs/aws-root-ca.pem" TEXT)
          target_add_binary_data(${COMPONENT_TARGET} "certs/certificate.pem.crt" TEXT)
          target_add_binary_data(${COMPONENT_TARGET} "certs/private.pem.key" TEXT)
          endif()

kotyara12 · January 31, 2021, 6:21pm

Thanks, I’ll try now