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DNN symbol lookup error

Hi, I have compiled OpenCV4 on my Raspberry PI 4 and It works fine except the DNN module, because every time I call any DNN function I get a "symbol lookup error" (I think I am linking it properly in CodeBlocks). I have tried compiling other OpenCV versions (even OpenCV3 versions) but I always get "symbol lookup error".

Any idea/suggestion?

Thanks in advance.

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