hashicorp/packer · error

%w. Is the checksum file correct ? Is the binary file correc

Error message

%w. Is the checksum file correct ? Is the binary file correct ?

What it means

Plugin installation error from InstallLatest: the downloaded zip failed checksum verification against the release's checksum file — either the checksum file or the binary doesn't match. Installation continues with other candidates and reports the mismatch.

Source

Thrown at packer/plugin-getter/plugins.go:844

					}()

					// write binary to tmp file
					_, err = io.Copy(tmpFile, remoteZipFile)
					_ = remoteZipFile.Close()
					if err != nil {
						err := fmt.Errorf("Error getting plugin, trying another getter: %w", err)
						errs = multierror.Append(errs, err)
						continue
					}
					if _, err := tmpFile.Seek(0, 0); err != nil {
						err := fmt.Errorf("Error seeking beginning of temporary file for checksumming, continuing: %w", err)
						errs = multierror.Append(errs, err)
						continue
					}

					// verify that the checksum for the zip is what we expect.
					if err := checksum.Checksummer.Checksum(checksum.Expected, tmpFile); err != nil {
						err := fmt.Errorf("%w. Is the checksum file correct ? Is the binary file correct ?", err)
						errs = multierror.Append(errs, err)
						continue
					}
					zr, err := zip.OpenReader(tmpFile.Name())
					if err != nil {
						errs = multierror.Append(errs, fmt.Errorf("zip : %v", err))
						return nil, errs
					}

					var copyFrom io.ReadCloser
					for _, f := range zr.File {
						if f.Name != expectedBinaryFilename {
							continue
						}
						copyFrom, err = f.Open()
						if err != nil {
							errs = multierror.Append(errs, fmt.Errorf("failed to open temp file: %w", err))
							return nil, errs

View on GitHub (pinned to eb36e3c3e4)

Solutions

1. Retry the install — a corrupted download is the most common cause
2. Verify the release's checksum file matches its assets on the plugin's release page
3. Check for MITM/proxy tampering if mismatches persist

When it happens

Trigger: Thrown at packer/plugin-getter/plugins.go:844 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hashicorp/packer@eb36e3c3e4 (2026-09-05). Data as JSON: /api/errors/b2cae9c1b2274c7a. Report an issue: GitHub.