Build problem

[bigBonSlime]

Ubuntu 23.04 ` [100%] Built target monero-cpp -- The C compiler identification is GNU 12.3.0 -- The CXX compiler identification is GNU 12.3.0 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/bin/cc - skipped -- Detecting C compile features -- Detecting C compile features - done -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- MONERO_CPP:/home/user/Desktop/lib/monero-java/external/monero-cpp:/home/user/Desktop/lib/monero-java/external/monero-cpp CMake Error at CMakeLists.txt:28 (include_directories): include_directories given empty-string as include directory.

-- EXTRA_LIBRARIES: -- Using Boost include dir at /usr/include -- Found OpenSSL: /usr/lib/x86_64-linux-gnu/libcrypto.so (found version "3.0.8")
-- Using OpenSSL include dir at /usr/include -- Configuring incomplete, errors occurred! See also "/home/user/Desktop/lib/monero-java/build/CMakeFiles/CMakeOutput.log".

`

[woodser]

Did you set JAVA_HOME? From the instructions: export JAVA_HOME=/path/to/jdk

[bigBonSlime]

This solved the problem, thanks. It was not obvious that this variable was being used at this stage

[woodser]

It was not obvious that this variable was being used at this stage

I've improved the error message when JAVA_HOME isn't set. Thanks.