Build fails with no error message

[acco]

Hey team - been using Netlify for a while, this is the first time I couldn’t overcome a build failure.

Details below. The deploy log is devoid of a tangible error message. Here’s what I’ve tried already:

• Built locally
• Ensure that Yarn and Node versions match local and prod
• Renamed my yarn build command to something else
• Pulled build-image and successfully ran the build command using the same Netlify build bot

The git diff between the last successful build and this one is fairly substantial, but I just can’t imagine what’s causing it. The gist of what’s in the diff:

• New images
• Updates to JS files
• A new yarn package (that’s in yarn and yarn.lock)

Details about the app:

• Create React App (latest) + TypeScript
• Yarn @ 1.22.4 (set in env variable)
• Node @ 12.13.1 (set in .nvmrc)

Build log:

5:04:07 PM: Build ready to start
5:04:08 PM: build-image version: 3031d4c9e432fd7016f6279fc9ad706f9205d845
5:04:08 PM: build-image tag: v3.3.17
5:04:08 PM: buildbot version: 1f35b3abd6e2bf5230d8edf68072840fdec1513f
5:04:09 PM: Fetching cached dependencies
5:04:09 PM: Starting to download cache of 254.3KB
5:04:09 PM: Finished downloading cache in 74.465594ms
5:04:09 PM: Starting to extract cache
5:04:09 PM: Failed to fetch cache, continuing with build
5:04:09 PM: Starting to prepare the repo for build
5:04:09 PM: No cached dependencies found. Cloning fresh repo
5:04:09 PM: git clone [omitted]
5:04:10 PM: Preparing Git Reference refs/heads/master
5:04:11 PM: Starting build script
5:04:11 PM: Installing dependencies
5:04:11 PM: Python version set to 2.7
5:04:12 PM: Attempting node version '12.13.1' from .nvmrc
5:04:12 PM: Downloading and installing node v12.13.1...
5:04:13 PM: Downloading https://nodejs.org/dist/v12.13.1/node-v12.13.1-linux-x64.tar.xz...
5:04:13 PM: Computing checksum with sha256sum
5:04:13 PM: Checksums matched!
5:04:15 PM: Now using node v12.13.1 (npm v6.12.1)
5:04:15 PM: Started restoring cached build plugins
5:04:15 PM: Finished restoring cached build plugins
5:04:16 PM: Attempting ruby version 2.6.2, read from environment
5:04:17 PM: Using ruby version 2.6.2
5:04:17 PM: Using PHP version 5.6
5:04:17 PM: 5.2 is already installed.
5:04:17 PM: Using Swift version 5.2
5:04:17 PM: Started restoring cached node modules
5:04:17 PM: Finished restoring cached node modules
5:04:17 PM: Started restoring cached yarn cache
5:04:17 PM: Finished restoring cached yarn cache
5:04:17 PM: Installing yarn at version 1.22.4
5:04:17 PM: Installing Yarn!
5:04:17 PM: > Downloading tarball...
5:04:17 PM: [1/2]: https://yarnpkg.com/downloads/1.22.4/yarn-v1.22.4.tar.gz --> /tmp/yarn.tar.gz.b8h66cJ5W9
5:04:17 PM:   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
5:04:17 PM:                                  Dload  Upload   Total   Spent    Left  Speed
5:04:18 PM:   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
5:04:18 PM: 100    80  100    80    0     0    264      0 --:--:-- --:--:-- --:--:--   264
5:04:18 PM: 100    93  100    93    0     0    149      0 --:--:-- --:--:-- --:--:--   149
5:04:18 PM:   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
5:04:18 PM: 100   630  100   630    0     0    711      0 --:--:-- --:--:-- --:--:-- 12600
5:04:19 PM: 100 1215k  100 1215k    0     0   901k      0  0:00:01  0:00:01 --:--:--  901k
5:04:19 PM: [2/2]: https://yarnpkg.com/downloads/1.22.4/yarn-v1.22.4.tar.gz.asc --> /tmp/yarn.tar.gz.b8h66cJ5W9.asc
5:04:19 PM: 100    84  100    84    0     0   3043      0 --:--:-- --:--:-- --:--:--  3043
5:04:19 PM: 100    97  100    97    0     0   1758      0 --:--:-- --:--:-- --:--:--  1758
5:04:19 PM: 100   634  100   634    0     0   2975      0 --:--:-- --:--:-- --:--:--  2975
5:04:19 PM: 100  1028  100  1028    0     0   4076      0 --:--:-- --:--:-- --:--:--  4076
5:04:19 PM: > Verifying integrity...
5:04:19 PM: gpg: Signature made Mon 09 Mar 2020 03:52:13 PM UTC using RSA key ID 69475BAA
5:04:19 PM: gpg: Good signature from "Yarn Packaging <yarn@dan.cx>"
5:04:19 PM: gpg: WARNING: This key is not certified with a trusted signature!
5:04:19 PM: gpg:          There is no indication that the signature belongs to the owner.
5:04:19 PM: Primary key fingerprint: 72EC F46A 56B4 AD39 C907  BBB7 1646 B01B 86E5 0310
5:04:19 PM:      Subkey fingerprint: 6D98 490C 6F1A CDDD 448E  4595 4F77 6793 6947 5BAA
5:04:19 PM: > GPG signature looks good
5:04:19 PM: > Extracting to ~/.yarn...
5:04:19 PM: > Adding to $PATH...
5:04:19 PM: > Successfully installed Yarn 1.22.4! Please open another terminal where the `yarn` command will now be available.
5:04:20 PM: Installing NPM modules using Yarn version 1.22.4
5:04:20 PM: yarn install v1.22.4
5:04:20 PM: [1/4] Resolving packages...
5:04:20 PM: [2/4] Fetching packages...
5:04:20 PM: [3/4] Linking dependencies...
5:04:20 PM: [4/4] Building fresh packages...
5:04:20 PM: success Saved lockfile.
5:04:20 PM: Done in 0.12s.
5:04:20 PM: NPM modules installed using Yarn
5:04:20 PM: Started restoring cached go cache
5:04:20 PM: Finished restoring cached go cache
5:04:20 PM: Installing Go version 1.12
5:04:26 PM: unset GOOS;
5:04:26 PM: unset GOARCH;
5:04:26 PM: export GOROOT='/opt/buildhome/.gimme_cache/versions/go1.12.linux.amd64';
5:04:26 PM: export PATH="/opt/buildhome/.gimme_cache/versions/go1.12.linux.amd64/bin:${PATH}";
5:04:26 PM: go version >&2;
5:04:26 PM: export GIMME_ENV="/opt/buildhome/.gimme_cache/env/go1.12.linux.amd64.env"
5:04:26 PM: go version go1.12 linux/amd64
5:04:26 PM: Installing missing commands
5:04:26 PM: Verify run directory
5:04:27 PM: ​
5:04:27 PM: ┌─────────────────────────────┐
5:04:27 PM: │        Netlify Build        │
5:04:27 PM: └─────────────────────────────┘
5:04:27 PM: ​
5:04:27 PM: ❯ Version
5:04:27 PM:   @netlify/build 2.0.10
5:04:27 PM: ​
5:04:27 PM: ❯ Flags
5:04:27 PM:   deployId: 5ef3e9f74cb8464edbd20d46
5:04:27 PM:   mode: buildbot
5:04:27 PM: ​
5:04:27 PM: ❯ Current directory
5:04:27 PM:   /opt/build/repo
5:04:27 PM: ​
5:04:27 PM: ❯ Config file
5:04:27 PM:   No config file was defined: using default values.
5:04:27 PM: ​
5:04:27 PM: ❯ Context
5:04:27 PM:   production
5:04:27 PM: ​
5:04:27 PM: ┌────────────────────────────────┐
5:04:27 PM: │ 1. Build command from settings │
5:04:27 PM: └────────────────────────────────┘
5:04:27 PM: ​
5:04:27 PM: $ yarn build-dash
5:04:27 PM: yarn run v1.22.4
5:04:27 PM: $ yarn --cwd frontend install && yarn --cwd frontend build-dash
5:04:27 PM: [1/4] Resolving packages...
5:04:28 PM: [2/4] Fetching packages...
5:04:58 PM: info fsevents@2.1.2: The platform "linux" is incompatible with this module.
5:04:58 PM: info "fsevents@2.1.2" is an optional dependency and failed compatibility check. Excluding it from installation.
5:04:58 PM: info fsevents@1.2.12: The platform "linux" is incompatible with this module.
5:04:58 PM: info "fsevents@1.2.12" is an optional dependency and failed compatibility check. Excluding it from installation.
5:04:58 PM: [3/4] Linking dependencies...
5:04:58 PM: warning "antd > rc-picker@1.4.7" has unmet peer dependency "dayjs@^1.8.18".
5:05:14 PM: [4/4] Building fresh packages...
5:05:19 PM: $ react-app-rewired build
5:05:21 PM: Creating an optimized production build...
5:06:48 PM: 
5:06:48 PM: Treating warnings as errors because process.env.CI = true.
5:06:48 PM: Most CI servers set it automatically.
5:06:48 PM: 
5:06:48 PM: Failed to compile.
5:06:48 PM: 
5:06:48 PM: error Command failed with exit code 1.
5:06:48 PM: info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
5:06:48 PM: error Command failed with exit code 1.
5:06:48 PM: info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
5:06:48 PM: ​
5:06:48 PM: ┌─────────────────────────────┐
5:06:48 PM: │   "build.command" failed    │
5:06:48 PM: └─────────────────────────────┘
5:06:48 PM: ​
5:06:48 PM:   Error message
5:06:48 PM:   Command failed with exit code 1: yarn build-dash
5:06:48 PM: ​
5:06:48 PM:   Error location
5:06:48 PM:   In Build command from settings:
5:06:48 PM:   yarn build-dash
5:06:48 PM: ​
5:06:48 PM:   Resolved config
5:06:48 PM:   build:
5:06:48 PM:     command: yarn build-dash
5:06:48 PM:     publish: /opt/build/repo/frontend/build
5:06:48 PM: Caching artifacts
5:06:48 PM: Started saving node modules
5:06:48 PM: Finished saving node modules
5:06:48 PM: Started saving build plugins
5:06:48 PM: Finished saving build plugins
5:06:48 PM: Started saving yarn cache
5:06:48 PM: Finished saving yarn cache
5:06:48 PM: Started saving pip cache
5:07:02 PM: Finished saving pip cache
5:07:02 PM: Started saving emacs cask dependencies
5:07:02 PM: Finished saving emacs cask dependencies
5:07:02 PM: Started saving maven dependencies
5:07:02 PM: Finished saving maven dependencies
5:07:02 PM: Started saving boot dependencies
5:07:02 PM: Finished saving boot dependencies
5:07:02 PM: Started saving go dependencies
5:07:04 PM: Finished saving go dependencies
5:07:07 PM: Error running command: Build script returned non-zero exit code: 1
5:07:07 PM: Failing build: Failed to build site
5:07:07 PM: Failed during stage 'building site': Build script returned non-zero exit code: 1
5:07:07 PM: Finished processing build request in 2m58.978354124s

Anything else I should try? Any way for me to see a better error message? Thanks!

Anthony

[jcespinoza]

Hey @acco,

I’m sure your problem is that your build command (yarn build-dash) is outputting warnings to the console and since recently warnings are now considered errors among CI platforms.
Just search for “Treating warnings as errors because process.env.CI = true” and you’ll understand.

This happened to me and fortunately all I had to do what fix a couple unused imports to prevent linting warnings. In your case, maybe you could try calling commands internally with a lower verbosity setting?

Hope this helps,
JC

[perry]

hi there,

please see this article:

New CI=true build configuration, "Treating warnings as errors because process.env.CI = true"

Beginning on June 15, 2020 Netlify will start a gradual rollout of adding the environment variable CI to build environments, with the value of true . This environment variable, short for Continuous Integration, is commonly set in various CI environments like Travis CI and Github Actions, among many others. The ecosystem has largely agreed to use this environment setting to detect when a build is executing in a CI environment, as opposed to a local development environment. This setting allows…

[acco]

Thanks team! This is surely the issue

[acco]

Confirmed, thank you. Linter errors were failing the build