Error when linking

IDE: C++ Builder 10.2 Tokyo
OS: Android
COMPONENT: TMS Cryptography Pack
QUESTION:
Hi, when a linking for android a get this error:

[ldandroid Error] C:\Users\Gledston\Documents</span>Embarcadero\Studio\19.0</span>PlatformSDKs\android-ndk-r9c</span>toolchains\arm-linux-androideabi-4.6\prebuilt</span>windows\bin\arm-linux-androideabi-ld.exe: C:\Users\Gledston\Documents</span>Embarcadero\Studio\19.0\Dcp</span>Android/libTMSCryptoPkgDXE11.a(MiscObj.o): in function Miscobj::HexaToChar(unsigned char*, unsigned char*):MiscObj(.text.ZN7Miscobj10HexaToCharEPhS0+0x4): error: undefined reference to "HexaToChar"

 Any tip?

Hi Guys, this solution is: "You have to add the file in your project: Project/Add to project and choose libCrypto.a in libAndroid folder" by Marion Candau.