gogrpcmock plugin appends a '_' to field size

[chenliu1993]

My message is defined like this:
message xxx { string name = 1; uint64 size = 2; string uuid = 3; ... }
And I generate the mock through
--gogrpcmock_out=. --gogrpcmock_opt=paths=source_relative
the *.mock.go can be generated but the field 'Size' is always in th form of 'Size_' which lead to an error like
unknown field Size_ in struct literalcompiler[MissingLitField](https://pkg.go.dev/golang.org/x/tools/internal/typesinternal?utm_source%3Dgopls#MissingLitField)json

Is this because I am using the plugin in a wrong way?

[chenliu1993]

close this one since I have got the answer.I cannot rememeber it clearly since it's been some time. THe reason is that I should use the gogo not original go-proc