I’m trying to add V4 support to a webhook service, which already has V3 support. I’ve added the V4 handler and proto unmarshaller as described in HTTP - ChirpStack open-source LoRaWAN® Network Server documentation.
When trying to compile I’m getting the following error:
GOROOT=/home/jpmeijers/sdk/go1.19.3 #gosetup
GOPATH=/home/jpmeijers/go #gosetup
/home/jpmeijers/sdk/go1.19.3/bin/go build -o /home/jpmeijers/.cache/JetBrains/GoLand2023.3/tmp/GoLand/___go_build_ttnmapper_ingress_api . #gosetup
/home/jpmeijers/.cache/JetBrains/GoLand2023.3/tmp/GoLand/___go_build_ttnmapper_ingress_api
panic: proto: file "common/common.proto" is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
goroutine 1 [running]:
google.golang.org/protobuf/reflect/protoregistry.glob..func1({0x13fb440?, 0xc000265110?}, {0x13fb440?, 0xc000265110})
/home/jpmeijers/GolandProjects/ttnmapper-ingress-api/vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go:56 +0x1ee
google.golang.org/protobuf/reflect/protoregistry.(*Files).RegisterFile(0xc0000121f8, {0x1414d80?, 0xc000274540?})
/home/jpmeijers/GolandProjects/ttnmapper-ingress-api/vendor/google.golang.org/protobuf/reflect/protoregistry/registry.go:130 +0x39f
google.golang.org/protobuf/internal/filedesc.Builder.Build({{0xfc99e8, 0x31}, {0x1c69d00, 0x636, 0x636}, 0x9, 0x4, 0x0, 0x0, {0x1402cd0, ...}, ...})
/home/jpmeijers/GolandProjects/ttnmapper-ingress-api/vendor/google.golang.org/protobuf/internal/filedesc/build.go:112 +0x1d6
google.golang.org/protobuf/internal/filetype.Builder.Build({{{0xfc99e8, 0x31}, {0x1c69d00, 0x636, 0x636}, 0x9, 0x4, 0x0, 0x0, {0x0, ...}, ...}, ...})
/home/jpmeijers/GolandProjects/ttnmapper-ingress-api/vendor/google.golang.org/protobuf/internal/filetype/build.go:138 +0x1b8
github.com/chirpstack/chirpstack/api/go/v4/common.file_common_common_proto_init()
/home/jpmeijers/GolandProjects/ttnmapper-ingress-api/vendor/github.com/chirpstack/chirpstack/api/go/v4/common/common.pb.go:1075 +0x1d8
github.com/chirpstack/chirpstack/api/go/v4/common.init.0()
/home/jpmeijers/GolandProjects/ttnmapper-ingress-api/vendor/github.com/chirpstack/chirpstack/api/go/v4/common/common.pb.go:1006 +0x17
Process finished with the exit code 2
As per the Go FAQ, I tried moving the V3 and V4 handlers into separate packages, but I’m still getting this same error.
Does anyone have a suggestion how to solve this error properly, without resorting to using
go build -ldflags "-X google.golang.org/protobuf/reflect/protoregistry.conflictPolicy=warn"
or
GOLANG_PROTOBUF_REGISTRATION_CONFLICT=warn ./main ?
My code can be found at GitHub - ttnmapper/ingress-api at feature/chirpstackV4
Update
When compiling the service with google.golang.org/protobuf/reflect/protoregistry.conflictPolicy=warn the output looks much different, mentioning many more protos colliding. So far the unmarshalling does seem to work correctly.
GOROOT=/home/jpmeijers/sdk/go1.19.3 #gosetup
GOPATH=/home/jpmeijers/go #gosetup
/home/jpmeijers/sdk/go1.19.3/bin/go build -ldflags -X google.golang.org/protobuf/reflect/protoregistry.conflictPolicy=warn -o /home/jpmeijers/.cache/JetBrains/GoLand2023.3/tmp/GoLand/___1go_build_ttnmapper_ingress_api . #gosetup
/home/jpmeijers/.cache/JetBrains/GoLand2023.3/tmp/GoLand/___1go_build_ttnmapper_ingress_api
WARNING: proto: file "common/common.proto" is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.LocationSource
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.GEO_RESOLVER_WIFI
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.GEO_RESOLVER_GNSS
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.GEO_RESOLVER_RSSI
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.GEO_RESOLVER_TDOA
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.CONFIG
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.GPS
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.UNKNOWN
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.MType
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.Region
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.ISM2400
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.RU864
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.IN865
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.KR920
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.AS923_4
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.AS923_3
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.AS923_2
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.AS923
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.CN470
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.AU915
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.EU433
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.CN779
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.US915
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.EU868
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.Modulation
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.LR_FHSS
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.FSK
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.LORA
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.KeyEnvelope
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "common/common.proto" has a name conflict over common.Location
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message common.Location is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message common.KeyEnvelope is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.TxAckStatus
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.INTERNAL_ERROR
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.QUEUE_FULL
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GPS_UNLOCKED
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.TX_POWER
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.TX_FREQ
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.COLLISION_BEACON
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.COLLISION_PACKET
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.TOO_EARLY
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.TOO_LATE
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.OK
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.IGNORED
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.CRCStatus
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.CRC_OK
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.BAD_CRC
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.NO_CRC
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.FineTimestampType
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.PLAIN
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.ENCRYPTED
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.NONE
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.DownlinkTiming
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GPS_EPOCH
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.DELAY
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.IMMEDIATELY
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.ConnState
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.RawPacketForwarderCommand
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.RawPacketForwarderEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GatewayCommandExecResponse
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GatewayCommandExecRequest
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.ChannelConfiguration
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GatewayConfiguration
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.DownlinkFrameItem
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.DownlinkFrame
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.UplinkFrameSet
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.UplinkFrame
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GPSEpochTimingInfo
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.DelayTimingInfo
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.ImmediatelyTimingInfo
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.PerModulationCount
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.GatewayStats
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.PlainFineTimestamp
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.EncryptedFineTimestamp
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "gw/gw.proto" has a name conflict over gw.Modulation
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.Modulation is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.EncryptedFineTimestamp is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.PlainFineTimestamp is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.GatewayStats is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.PerModulationCount is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.ImmediatelyTimingInfo is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.DelayTimingInfo is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.GPSEpochTimingInfo is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.UplinkFrame is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.UplinkFrameSet is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.DownlinkFrame is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.DownlinkFrameItem is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.GatewayConfiguration is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.ChannelConfiguration is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.GatewayCommandExecRequest is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.GatewayCommandExecResponse is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.RawPacketForwarderEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.RawPacketForwarderCommand is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message gw.ConnState is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.DOWNLINK_GATEWAY
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.UPLINK_MIC
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.OTAA
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.DOWNLINK_CODEC
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.UPLINK_CODEC
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.DOWNLINK_PAYLOAD_SIZE
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.UNKNOWN
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.IntegrationEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.LocationEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.StatusEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.TxAckEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.AckEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.JoinEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: file "integration/integration.proto" has a name conflict over integration.UplinkEvent
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.UplinkEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.JoinEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.AckEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.TxAckEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.StatusEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.LocationEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict
WARNING: proto: message integration.IntegrationEvent is already registered
See https://protobuf.dev/reference/go/faq#namespace-conflict