iOS将framework转换成支持uniapp的插件时报错

iOS，DCTestUniPlugin引入本地framework，使用SDK内的文件，报以下错误：
ld: Undefined symbols:
_OBJCCLASS$_ISSPaySDK, referenced from:
in DCTestUniPlugin6
clang: error: linker command failed with exit code 1 (use -v to see invocation)