# In libconverter on Linux, how do I fix the following error? undefined reference to 'Communicator::Importer::Init(Communicator::Converter\*, std::\_\_cxx11::basic\_string\<char, std::char\_traits\<char\>, std::allocator\<char\> \>, int)'

**URL:** <https://forum.techsoft3d.com/t/in-libconverter-on-linux-how-do-i-fix-the-following-error-undefined-reference-to-communicator-init-communicator-converter-std-basic-string-char-std-char-traits-char-std-allocator-char-int/49>\
**Category:** HOOPS Visualize Web\
**Created:** [July 3, 2019, 7:00am UTC](https://forum.techsoft3d.com/t/in-libconverter-on-linux-how-do-i-fix-the-following-error-undefined-reference-to-communicator-init-communicator-converter-std-basic-string-char-std-char-traits-char-std-allocator-char-int/49 "2019-07-03T07:00:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rbeyer1](https://avatars.discourse-cdn.com/v4/letter/r/fbc32d/32.png) [@rbeyer1](https://forum.techsoft3d.com/u/rbeyer1)\
**Post date:** [July 3, 2019, 7:00am UTC](https://forum.techsoft3d.com/t/in-libconverter-on-linux-how-do-i-fix-the-following-error-undefined-reference-to-communicator-init-communicator-converter-std-basic-string-char-std-char-traits-char-std-allocator-char-int/49/1 "2019-07-03T07:00:00Z")

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**As of HOOPS Communicator 2019, we’re now using GCC 6.3.1 (specifically, the version from devtoolset-6 6.1 on CentOS 6.9) with -std=c++11. Please note that we are not using the C++11 ABI that is used by default by GCC 5 and later, so code that calls functions in libconverter (and probably any other code that interacts with that code) needs to be compiled with the -D\_GLIBCXX\_USE\_CXX11\_ABI=0 flag. Using this flag is likely the solution to the error listed above.**