<html><body><div style="font-family: lucida console,sans-serif; font-size: 10pt; color: #000000"><div>Hey Everyone </div><div>I am using Mac OS X 10.10.3 and Xcode 5.1.1 . When I am writing a filter in this environment. I get the following error</div><div><br></div><div><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;">Undefined symbols for architecture x86_64:</p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;"> "itk::MapPointMatrixFilter<itk::Image<double, 3u> >::MapPointMatrixFilter()", referenced from:</p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;"> itk::MapPointMatrixFilter<itk::Image<double, 3u> >::New() in mapsfilter.o</p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;">ld: symbol(s) not found for architecture x86_64</p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;">clang: error: linker command failed with exit code 1 (use -v to see invocation)</p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;"><br></p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;"><br></p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;">I do not understand why I should get this error. If anyone has any insights, it will be really useful.</p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;"><br></p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;">Thanks </p><p class="p1" style="margin: 0px;" data-mce-style="margin: 0px;">Vikash</p></div></div></body></html>