<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1516268359903_2798"><br></div><div id="yui_3_16_0_ym19_1_1516268359903_2798">Greetings.</div><div id="yui_3_16_0_ym19_1_1516268359903_2798"><br></div><div id="yui_3_16_0_ym19_1_1516268359903_2798" dir="ltr">I am trying to install ncl on my Mac (a desktop computer). When I ran test program of "<i style="color: rgb(77, 47, 45); font-family: Courier; font-size: 18px;" id="yui_3_16_0_ym19_1_1516268359903_3021">ng4ex xy01n -clean</i>" it shows that </div><div style="margin-top: 0px; margin-bottom: 0px; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Courier; color: rgb(77, 47, 45); background-color: rgb(223, 219, 195);" dir="ltr" id="yui_3_16_0_ym19_1_1516268359903_3058"><span style="font-variant-ligatures: no-common-ligatures" id="yui_3_16_0_ym19_1_1516268359903_3059"><i id="yui_3_16_0_ym19_1_1516268359903_3060">dyld: Library not loaded: /usr/local/lib/libgfortran.3.dylib</i></span></div><div id="yui_3_16_0_ym19_1_1516268359903_2798" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1516268359903_2798" dir="ltr">However, I have <i style="color: rgb(77, 47, 45); font-family: Courier; font-size: 18px;" id="yui_3_16_0_ym19_1_1516268359903_3065">dyld: Library not loaded: /usr/local/lib/libgfortran.4.dylib</i></div><div id="yui_3_16_0_ym19_1_1516268359903_2798" dir="ltr">instead. How can I solve this problem? Thanks.</div><div id="yui_3_16_0_ym19_1_1516268359903_2798" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1516268359903_2798" dir="ltr">Yuanfu</div></div></body></html>