Please help me with these errors : Undefined symbol

Has anyone encountered the following error? I have tried everything to resolve with no luck.

Running pod install...                                           2,462ms

Running Xcode build...                                                  

 └─Compiling, linking and signing...                        19.1s

Xcode build done.                                           117.9s

Failed to build iOS app

Error (Xcode): Undefined symbol: _PdfxApiGetCodec

Error (Xcode): Linker command failed with exit code 1 (use -v to see invocation)

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