euler/core/graph/graph_meta.cc:41：Find feature error, Unknown feature name: binary_graph_labelFind feature error, Unknown feature name: binary_graph_label

编译完成之后，跑example的时候，发现日志里有一个这样的错误euler/core/graph/graph_meta.cc:41：Find feature error, Unknown feature name: binary_graph_label，请问这个是因为什么导致的呢？任务顺利的运行了，但是想知道这个会不会影响结果

Reproduce the example and inspect the lookup reported at euler/core/graph/graph_meta.cc:41 for the missing feature name binary_graph_label. Trace where that feature is requested and compare it with the example's available inputs. Done means identifying why the warning occurs and documenting whether it can affect the example's results.

Written by the indexing model from the issue text.