Error: Custom { kind: Other, error: "protoc failed: blockchain_txn.proto:1:10: Unrecognized syntax identifier \"proto3\". This parser only recognizes \"proto2\".\n" }

[shawaj]

Any idea how to resolve this?

error: failed to run custom build command for `helium-proto v0.1.0 (https://github.com/helium/proto?branch=master#6edba809)`

Caused by:
  process didn't exit successfully: `/target/release/build/helium-proto-62cbd62839dbfd84/build-script-build` (exit status: 1)
  --- stdout
  cargo:rerun-if-changed=src/blockchain_txn.proto
  cargo:rerun-if-changed=src/entropy.proto
  cargo:rerun-if-changed=src/data_rate.proto
  cargo:rerun-if-changed=src/region.proto
  cargo:rerun-if-changed=src/mapper.proto
  cargo:rerun-if-changed=src/reward_manifest.proto
  cargo:rerun-if-changed=src/blockchain_region_param_v1.proto
  cargo:rerun-if-changed=src/price_report.proto
  cargo:rerun-if-changed=src/service/router.proto
  cargo:rerun-if-changed=src/service/state_channel.proto
  cargo:rerun-if-changed=src/service/local.proto
  cargo:rerun-if-changed=src/service/gateway.proto
  cargo:rerun-if-changed=src/service/transaction.proto
  cargo:rerun-if-changed=src/service/follower.proto
  cargo:rerun-if-changed=src/service/poc_mobile.proto
  cargo:rerun-if-changed=src/service/poc_lora.proto
  cargo:rerun-if-changed=src/service/poc_entropy.proto
  cargo:rerun-if-changed=src/service/packet_router.proto
  cargo:rerun-if-changed=src/service/iot_config.proto
  cargo:rerun-if-changed=src/service/mobile_config.proto
  cargo:rerun-if-changed=src/service/downlink.proto
  cargo:rerun-if-changed=src/service/multi_buy.proto
  cargo:rerun-if-changed=src/service/packet_verifier.proto
  cargo:rerun-if-changed=src

  --- stderr
  Error: Custom { kind: Other, error: "protoc failed: blockchain_txn.proto:1:10: Unrecognized syntax identifier \"proto3\".  This parser only recognizes \"proto2\".\n" }
warning: build failed, waiting for other jobs to finish...
[cargo-make] ERROR - Error while executing command, exit code: 101
[cargo-make] WARN - Build Failed.
Error: Process completed with exit code 1.

[shawaj]

For reference, it only seems to happen when trying to build gateway-rs for:

• aarch64-unknown-linux-gnu
• armv7-unknown-linux-gnueabihf

The others seem to work fine

[lthiery]

@shawaj how are you building for the other platforms?

Based on the error, it looks like the system protoc that the Rust compilation is using is proto2. Can you run protoc --version?

[madninja]

The platform you're building on needs to have the protoc compiler installed. This is prolly not the right repo for this?

[madninja]

Please take to gateway-rs or the right repowhere you're seeing issues.

[shawaj]

sorry @madninja @lthiery moving to helium/gateway-rs#415