opencv调用pb模型报错

[lans_wen]

小弟今天在使用opencv中dnn模块调用pb模型时，一直报错Error: Unspecified error (More than one input is Const op) in cv::dnn::experimental_dnn_34_v7::`anonymous-namespace'::TFImporter::getConstBlob, file C:\build\3_4_winpack-build-win64-vc14\opencv\modules\dnn\src\tensorflow\tf_importer.cpp, line 520
我看意思大概是不止一个输入是常量，不太明白什么意思，还望大佬赐教，感激不尽