# Go "build failed" loading test package imports - Fix in CI

> Fix Go test "build failed" from a bad import in the test package in CI - a missing or wrong import path stops the test binary loading. Resolve the import.

Source: https://latchkey.dev/learn/go/go-test-build-load-failed-import-ci  
Updated: 2026-06-26

Before running tests, Go loads and compiles the test package and everything it imports. A missing or wrong import there fails the load before any test runs.

## Diagnose it: environment first

```Terminal
go version
go env GOOS GOARCH CGO_ENABLED GOFLAGS GOPRIVATE GOPROXY
go mod verify
```

> `CGO_ENABLED` commonly differs between your machine and a slim CI image, and it changes whether packages importing C build at all.

## FAQ

### What causes Go "build failed" loading test package imports?

There are 2 common causes: test-only dependency not required and wrong import path in a test file. A test imports a package (e.g.

### How do I fix Go "build failed" loading test package imports?

There are 2 fixes depending on which cause you have: add the test dependency and fix the import path. Work through them in order, since the first is the most common.

### What does Go "build failed" loading test package imports actually mean?

A run fails with cannot load package or [build failed] pointing at an import in a _test.go file.

### How do I stop Go "build failed" loading test package imports happening again?

Run go mod tidy so test-only deps are recorded. The prevention section lists 3 changes that keep it from recurring.

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Latchkey runs CI/CD that repairs its own failures. Agent entry points: https://latchkey.dev/agent.txt, https://latchkey.dev/openapi.json, https://latchkey.dev/llms.txt