> python run.py
Traceback (most recent call last):
File "run.py", line 1, in <module>
from urls import app
File "C:\Users\ebata\fastapi\urls.py", line 1, in <module>
from controllers import *
File "C:\Users\ebata\fastapi\controllers.py", line 3, in <module>
app = FastAPI(
NameError: name 'FastAPI' is not defined
syntax = "proto3";
option go_package="./;main"; // 理由は分からないけど、この1行で、以下のエラーが消えた
//$ protoc --go_out=. *.proto
//protoc-gen-go: unable to determine Go import path for "person.proto"
//Please specify either:
// • a "go_package" option in the .proto source file, or
// • a "M" argument on the command line.
//See https://developers.google.com/protocol-buffers/docs/reference/go-generated#p
//ackage for more information.
//--go_out: protoc-gen-go: Plugin failed with status code 1.
package main;
message Person{
string name = 1;
int32 age = 2;
}
この結果、以下のようなperson.pb.goが生成されました。
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.22.2
// source: person.proto
package main
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type Person struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
Age int32 `protobuf:"varint,2,opt,name=age,proto3" json:"age,omitempty"`
}
func (x *Person) Reset() {
*x = Person{}
if protoimpl.UnsafeEnabled {
mi := &file_person_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Person) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Person) ProtoMessage() {}
func (x *Person) ProtoReflect() protoreflect.Message {
mi := &file_person_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Person.ProtoReflect.Descriptor instead.
func (*Person) Descriptor() ([]byte, []int) {
return file_person_proto_rawDescGZIP(), []int{0}
}
func (x *Person) GetName() string {
if x != nil {
return x.Name
}
return ""
}
func (x *Person) GetAge() int32 {
if x != nil {
return x.Age
}
return 0
}
var File_person_proto protoreflect.FileDescriptor
var file_person_proto_rawDesc = []byte{
0x0a, 0x0c, 0x70, 0x65, 0x72, 0x73, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x04,
0x6d, 0x61, 0x69, 0x6e, 0x22, 0x2e, 0x0a, 0x06, 0x50, 0x65, 0x72, 0x73, 0x6f, 0x6e, 0x12, 0x12,
0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61,
0x6d, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x61, 0x67, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52,
0x03, 0x61, 0x67, 0x65, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x2f, 0x3b, 0x6d, 0x61, 0x69, 0x6e, 0x62,
0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (
file_person_proto_rawDescOnce sync.Once
file_person_proto_rawDescData = file_person_proto_rawDesc
)
func file_person_proto_rawDescGZIP() []byte {
file_person_proto_rawDescOnce.Do(func() {
file_person_proto_rawDescData = protoimpl.X.CompressGZIP(file_person_proto_rawDescData)
})
return file_person_proto_rawDescData
}
var file_person_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_person_proto_goTypes = []interface{}{
(*Person)(nil), // 0: main.Person
}
var file_person_proto_depIdxs = []int32{
0, // [0:0] is the sub-list for method output_type
0, // [0:0] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_person_proto_init() }
func file_person_proto_init() {
if File_person_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_person_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Person); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_person_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_person_proto_goTypes,
DependencyIndexes: file_person_proto_depIdxs,
MessageInfos: file_person_proto_msgTypes,
}.Build()
File_person_proto = out.File
file_person_proto_rawDesc = nil
file_person_proto_goTypes = nil
file_person_proto_depIdxs = nil
}
main.go:7:2: no required module provides package google.golang.org/protobuf/prot
o: go.mod file not found in current directory or any parent directory; see 'go h
elp modules'
person.pb.go:10:2: no required module provides package google.golang.org/protobu
f/reflect/protoreflect: go.mod file not found in current directory or any parent
directory; see 'go help modules'
person.pb.go:11:2: no required module provides package google.golang.org/protobu
f/runtime/protoimpl: go.mod file not found in current directory or any parent di
rectory; see 'go help modules'
というエラーがでてくるので、
$go mod init m
$ go get google.golang.org/protobuf/reflect/protoreflect
$ go get google.golang.org/protobuf/proto
$ go get google.golang.org/protobuf/runtime/protoimpl
$go mod init m
$ go get google.golang.org/protobuf/reflect/protoreflect
$ go get google.golang.org/protobuf/proto
$ go get google.golang.org/protobuf/runtime/protoimpl
で、
こちらの環境でも、上記と同じ手続で、gtfs-realtime.pb.goを作り、
$ go run main.go gtfs-realtime.pb.go
を実施してみましたところ、
main.go:11:2: no required module provides package github.com/MobilityData/gtfs-realtime-bindings/golang/gtfs; to
add it:
go get github.com/MobilityData/gtfs-realtime-bindings/golang/gtfs
main.go:12:2: missing go.sum entry for module providing package github.com/golang/protobuf/proto; to add:
go mod download github.com/golang/protobuf
