<div dir="ltr">Hi all,<div>i tried to run my own testcase in service.t.cpp, but i got this error message below , and is there any suggestions for how to solve it ?</div><div><br></div><div><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(195,55,32)"><span class="gmail-s2" style="text-decoration-line:underline;font-variant-ligatures:no-common-ligatures">fatal error: in "BackEndOsx": ../ndn-cxx/security/tpm/back-end-osx.cpp(191): Throw in function BackEndOsx</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(195,55,32)"><span class="gmail-s2" style="text-decoration-line:underline;font-variant-ligatures:no-common-ligatures">Dynamic exception type: boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<ndn::security::tpm::BackEnd::Error> ></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(195,55,32)"><span class="gmail-s2" style="text-decoration-line:underline;font-variant-ligatures:no-common-ligatures">std::exception::what: No default keychain, create one first.</span></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(195,55,32)"><br></p><div>Best regards,</div><div>Wenkai Zheng</div></div></div>