ORA-02355: error opening file: string
Cause: An attempt to open the specified file for data export/import failed.
Action: Review the error message. Resolve the problem and retry the the operation. Contact Oracle Support Services if the problem cannot be resolved.
ORA-02355 error occurs when an attempt is made to read a condition from a file and the file does not exist or cannot be opened due to insufficient privileges or other issues.
1. 操作人员试图从一个文件中读取条件，但没有能力打开
2. 文件权限不足，导致无法打开
3. 文件不存在
4. 无法读取文件内容
1. 确认文件是否存在，检查文件路径是否正确
2. 检查操作者是否具有打开文件所需的权限
3. 使用高级文件权限控制来更正访问权限。
4. 重置文件权限，以允许打开文件
5. 检查文件是否受损，如果文件受损，重新创建文件。