errInitConfigError

errInitConfigError

Error message

Terraform encountered problems during initialisation, including problems
with the configuration, described below.

The Terraform configuration must be valid before initialization so that
Terraform can determine which modules and providers need to be installed.

What it means

Returned at init_run.go:125 when the root module cannot be loaded at all during early initialization (rootModEarly == nil after loadSingleModuleWithTests). This means parsing the root module's .tf files failed so severely that no module object was produced. The error is a preamble that wraps the underlying earlyConfDiags so the user sees both the init-context message and the actual parse errors.

Source

Thrown at internal/command/init_run.go:125

	if err != nil {
		diags = diags.Append(fmt.Errorf("Error checking configuration: %s", err))
		view.Diagnostics(diags)
		return 1
	}
	if empty {
		view.Output(views.OutputInitEmptyMessage)
		return 0
	}

	// Load just the root module to begin backend and module initialization
	rootModEarly, earlyConfDiags := c.loadSingleModuleWithTests(path, initArgs.TestsDirectory)

	// There may be parsing errors in config loading but these will be shown later _after_
	// checking for core version requirement errors. Not meeting the version requirement should
	// be the first error displayed if that is an issue, but other operations are required
	// before being able to check core version requirements.
	if rootModEarly == nil {
		diags = diags.Append(errors.New(errInitConfigError), earlyConfDiags)
		view.Diagnostics(diags)

		return 1
	}
	if !(c.Meta.AllowExperimentalFeatures && initArgs.EnablePssExperiment) && rootModEarly.StateStore != nil {
		// TODO(SarahFrench/radeksimko) - remove when this feature isn't experimental.
		// This approach for making the feature experimental is required
		// to let us assert the feature is gated behind an experiment in tests.
		// See https://github.com/hashicorp/terraform/pull/37350#issuecomment-3168555619

		detail := "Pluggable state store is an experiment which requires"
		if !c.Meta.AllowExperimentalFeatures {
			detail += " an experimental build of terraform"
		}
		if !initArgs.EnablePssExperiment {
			if !c.Meta.AllowExperimentalFeatures {
				detail += " and"
			}

View on GitHub (pinned to d32a084675)

Solutions

Run 'terraform validate' or 'terraform fmt' to identify and fix syntax errors in your .tf files.
Check the detailed diagnostics output that accompanies this error for specific line numbers.
Review recent changes to .tf files for syntax mistakes (unbalanced braces, missing quotes).
Ensure .tf files are valid UTF-8 and not corrupt.

Example fix

// before: main.tf has syntax error (unbalanced brace)
resource "aws_instance" "example" {
  ami = "ami-12345"
// missing closing brace

terraform init
// error: Terraform encountered problems during initialisation...

// after: fix syntax
resource "aws_instance" "example" {
  ami = "ami-12345"
}

Defensive patterns

Strategy: validation

Validate before calling

// Run terraform validate before init to catch syntax errors early:
// cmd := exec.Command("terraform", "validate")
// if err := cmd.Run(); err != nil {
//     return fmt.Errorf("fix configuration syntax before init: %w", err)
// }

Prevention

Run 'terraform fmt' and 'terraform validate' before 'terraform init'.
Use editor HCL plugins for real-time syntax checking.
Review .tf files for balanced braces and valid HCL syntax after merges.

When it happens

Trigger: Running 'terraform init' in a directory with .tf files containing syntax errors so severe that the root module cannot be parsed. init_run.go:120 calls loadSingleModuleWithTests(); if it returns nil, init_run.go:122-123 appends errInitConfigError along with earlyConfDiags.

Common situations: HCL syntax errors in main.tf (unbalanced braces, invalid block syntax); completely malformed configuration files; file encoding issues (binary/corrupt .tf files); empty or broken configuration after a bad merge.

Related errors

AI-assisted analysis of hashicorp/terraform@d32a084675 (2026-08-11). Data as JSON: /api/errors/983c2c9399bd4236. Report an issue: GitHub.