当我尝试在 golang 中编译 Protobuf 时，它显示“int”未定义。

Question

在编译原型文件时，我收到““int”未定义”。

“测试.proto”文件

syntax = "proto3";

package test;

option go_package = "/;test";

message User {
    string FirstName = 1;
    string LastName = 2;
    string Address = 3;
    int Contact = 4;
    int Age = 5;
}

Output:
test.proto:11:5: "int" is not defined.

Answer 1

int不是 proto3 中的标量类型。您必须使用指定的有效标量值类型之一：

https://developers.google.com/protocol-buffers/docs/proto3#scalar

替换int为int32：

syntax = "proto3";

package test;

option go_package = "/;test";

message User {
    string FirstName = 1;
    string LastName = 2;
    string Address = 3;
    int32 Contact = 4;
    int32 Age = 5;
}