<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear Sir or Madam, <div class=""><br class=""></div><div class="">When I tried to install NCL with conda, I met the following problem: </div><div class=""><br class=""></div><div class=""><div class="" style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">dyld: Library not loaded: @rpath/libgsl.19.dylib</span></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"> Referenced from: /Users/calmdown/anaconda/envs/ncl_stable/bin/ncl</span></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"> Reason: Incompatible library version: ncl requires version 22.0.0 or later, but libgsl.19.dylib provides version 20.0.0</span></div></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><br class=""></span></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">I followed the suggestion on the following website:</span></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><br class=""></span></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><a href="http://mailman.ucar.edu/pipermail/ncl-install/2017-July/002406.html" class="">http://mailman.ucar.edu/pipermail/ncl-install/2017-July/002406.html</a></span></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; background-color: rgb(255, 255, 255);"><br class=""></div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; background-color: rgb(255, 255, 255);">tried the command: </div><div class="" style="margin: 0px; font-size: 11px; line-height: normal; background-color: rgb(255, 255, 255);"><pre class="" style="font-variant-ligatures: normal; orphans: 2; widows: 2;"><font face="Helvetica" class="">conda create -n ncl_dev -c ncar -c conda-forge ncl=dev gsl</font></pre><div class="">But it did not work. In addition, I tried to update gsl library directly and it did not work too. </div><div class=""><br class=""></div><div class="">Do you have any suggestions for this problem? I am looking forward to your reply. </div><div class=""><br class=""></div><div class="">Best regards,</div><div class="">Shu Tu </div></div></body></html>