c# core: fix for  KeyNotFoundException error
c# core: fix for  KeyNotFoundException error

grokify/c-sharp,grokify/c-sharp,marceloinacio/c-sharp,marceloinacio/c-sharp,marceloinacio/c-sharp,grokify/c-sharp,marceloinacio/c-sharp,marceloinacio/c-sharp,grokify/c-sharp,grokify/c-sharp