Billionmail/BillionMail · error

error reading project configuration file: %v

Error message

error reading project configuration file: %v

What it means

After confirming project.json exists, ReadProjectConfig reads it with os.ReadFile; any OS-level read failure (permissions, race deletion, I/O error) is wrapped as this error including the underlying cause.

Source

Thrown at core/internal/service/askai/project.go:110

	AltText    string `json:"alt_text"`    // 图片替代文本
	ImageTag   string `json:"image_tag"`   // 图片标签
	UpdateTime int64  `json:"update_time"` // 更新时间
	Size       string `json:"size"`        // 图片大小 80x80
}

// ReadProjectConfig reads the project configuration from a JSON file based on the provided domain.
// It returns a ProjectConfig struct or an error if the file does not exist or cannot be read.
func ReadProjectConfig(Domain string) (ProjectConfig, error) {

	filename := fmt.Sprintf(PRODUCT_CONFIG_PATH+"/%s/project.json", Domain)
	// Here you would implement the logic to read the project configuration from the file.
	// For now, we will just return a placeholder string.
	if !public.FileExists(filename) {
		return ProjectConfig{}, fmt.Errorf("project configuration file does not exist: %s", filename)
	}
	data, err := os.ReadFile(filename)
	if err != nil {
		return ProjectConfig{}, fmt.Errorf("error reading project configuration file: %v", err)
	}

	var config ProjectConfig
	err = json.Unmarshal(data, &config)
	if err != nil {
		return ProjectConfig{}, fmt.Errorf("error unmarshalling project configuration: %v", err)
	}
	return config, nil
}

// SaveProjectConfig saves the provided ProjectConfig to a JSON file based on the domain.
// It creates the directory if it does not exist and writes the configuration to project.json.
// If the file cannot be written, it returns an error.
// If the directory does not exist, it creates it with appropriate permissions.
func SaveProjectConfig(Domain string, config ProjectConfig) error {
	projectConfigPath := fmt.Sprintf("%s/%s", PRODUCT_CONFIG_PATH, Domain)
	if !public.FileExists(projectConfigPath) {
		os.MkdirAll(projectConfigPath, os.ModePerm)

View on GitHub (pinned to fc36c76c05)

Solutions

1. Check file permissions/ownership for the process user on the project.json path
2. Inspect the wrapped %v cause in the error to distinguish permission vs I/O vs path issues
3. Verify the path is a regular file, not a directory
4. Retry the read; if it was a race with a concurrent save, a second read typically succeeds

info, err := os.Stat(filename)
if err != nil || !info.Mode().IsRegular() {
    return fmt.Errorf("%s is not a readable regular file", filename)
}
f, err := os.Open(filename)
if err != nil { return err }
f.Close()

var cfg askai.ProjectConfig
for i := 0; i < 3; i++ {
    cfg, err = askai.ReadProjectConfig(domain)
    if err == nil || !strings.Contains(err.Error(), "error reading") { break }
    time.Sleep(100 * time.Millisecond) // transient read race
}
if err != nil { return err }

When it happens

Trigger: os.ReadFile fails on PRODUCT_CONFIG_PATH/<Domain>/project.json — file exists at check time but is deleted before read (TOCTOU), permission denied, path is a directory, or disk I/O error.

Common situations: File permissions changed by another process/container user mismatch; concurrent SaveProjectConfig write with replace semantics breaking readers; the 'file' is actually a directory created by mistake; read-only or failing disk.

Understand the failure class

Background: "failed to read file", EACCES, ENOENT and "could not read <path>" errors: when a program can't read a file from disk — this error's family across 49 libraries.

Related errors

• error writing project configuration file: %v
• error writing knowledge base file: %v
• error creating company profile file: %v
• error reading company profile file: %v
• error saving prompt config file: %v

AI-assisted analysis of Billionmail/BillionMail@fc36c76c05 (2026-09-05). Data as JSON: /api/errors/8db07441d9c4f09a. Report an issue: GitHub.