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STM32F767ZI - "Permission Denied" Compilation Error After Enabling Ethernet (LwIP)

Nitin
Associate III

 

Hello,

I’m working with the STM32F767ZI board and have configured Ethernet (ETH) peripheral with LwIP middleware using STM32CubeIDE. After generating the code and trying to compile the project, I encounter the following error:

 

arduino
CopyEdit
ld.exe: cannot find .: Permission denied

This issue started occurring only after enabling the Ethernet peripheral and LwIP middleware. Prior to this configuration, the project was compiling successfully.

Steps Taken:

  • Enabled ETH in RMII mode

  • Enabled LwIP with default settings (static IP)

  • Generated code using STM32CubeMX

  • Tried cleaning and rebuilding the project

Additional Info:

  • STM32CubeIDE version: [your version, e.g. 1.13.0]

  • Toolchain: ARM-GCC (default from CubeIDE)

 

Request:
Could someone please help me identify why this "Permission denied" error is happening and how to resolve it? Also if the configuration has some other possible issue for ethernet not to work. I am attaching some conf images from cubeMX below

Nitin_0-1750759190986.png

 

Nitin_2-1750759234286.png

 

Nitin_3-1750759278553.png

 

Nitin_5-1750759314655.png

 

Nitin_8-1750759340504.png

 

 

 

Thanks in advance!

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