architecture i386: "_fwrite$UNIX2003", referenced from: _hex_dump_internal in libEaseMobClientSDK.a(dump.o) _pkt_dump_internal
使用环信时如果如果出现以下两个报错:"_fwrite$UNIX2003",referencedfrom:和linkercommandfailedwithexitcode1(use-vtoseeinvocation)异常的详细内容为:Undefinedsymbolsforarchitecturei386:"_fwrite$UNIX2003",referencedfrom:_hex_dump_inte