<div dir="ltr">Hi Rivet Developers, I'm having problems getting Rivet 2.4.0 working on Mac OS X Mavericks 10.9.5. I'm running Python 2.7.11 and Xcode 6.2. In the following I tried to install using the bootstrap script but I get the same error when trying to build and install from the source. Building and installing Rivet gives no errors, but when trying to run Rivet I get the following: 16:42:38 ❯ alexanderlind@Alexanders-MacBook-Pro ❯ Rivet ❯ source local/rivetenv.sh 16:42:43 ❯ alexanderlind@Alexanders-MacBook-Pro ❯ Rivet ❯ rivet --help The rivet Python module could not be loaded: is your PYTHONPATH set correctly? Rivet seems to have some problems with loading the Rivet module: 16:46:39 ❯ alexanderlind@Alexanders-MacBook-Pro ❯ lib ❯ python Python 2.7.11 (v2.7.11:6d1b6a68f775, Dec 5 2015, 12:54:16) [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import rivet Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Users/alexanderlind/Desktop/PythiaRivetAnalysis/Rivet/local/lib/python2.7/site-packages/rivet/__init__.py", line 12, in <module> from rivet.core import * ImportError: dlopen(/Users/alexanderlind/Desktop/PythiaRivetAnalysis/Rivet/local/lib/python2.7/site-packages/rivet/core.so, 10): Symbol not found: __ZN5Rivet14AnalysisLoader11getAnalysisERKSs Referenced from: /Users/alexanderlind/Desktop/PythiaRivetAnalysis/Rivet/local/lib/python2.7/site-packages/rivet/core.so Expected in: flat namespace in /Users/alexanderlind/Desktop/PythiaRivetAnalysis/Rivet/local/lib/python2.7/site-packages/rivet/core.so >>> It seems like it can't find the symbol __ZN5Rivet14AnalysisLoader11getAnalysisERKSs in core.so. core.so seems to depend on the symbol: 17:00:29 ❯ alexanderlind@Alexanders-MacBook-Pro ❯ rivet ❯ nm core.so | grep __ZN5Rivet14AnalysisLoader11getAnalysisERKSs U __ZN5Rivet14AnalysisLoader11getAnalysisERKSs The PYTHONPATH variable includes Rivet/local/lib/python2.7/site-packages and my DYLD_LIBRARY_PATH includes Rivet/local/lib where both libRivet.dylib and libRivet.la is located. It would seem that libRivet.dylib does not implement the symbol: 16:46:27 ❯ alexanderlind@Alexanders-MacBook-Pro ❯ lib ❯ nm libRivet.dylib | grep getAnalysis 0000000000037450 T __ZN5Rivet14AnalysisLoader11getAnalysisERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE 00000000000ba1a0 T __ZN5Rivet19getAnalysisLibPathsEv 00000000000ba520 T __ZN5Rivet19getAnalysisRefPathsEv 00000000000baaa0 T __ZN5Rivet20getAnalysisInfoPathsEv 00000000000bb020 T __ZN5Rivet20getAnalysisPlotPathsEv I have tried specifying the CFLAGS and CPPFLAGS as you write on your "Mac OS X installation issues" page before running ./rivet-bootstrap but it doesn't seem to make a difference. Do you have any idea what is wrong? Thank you in advance. Best regards, Alexander </div>