---
title: E21001 File_Operation_Error_Open
description: "Failed to open file %s. Reason: %s."
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/maintenref/troubleshooting/atlaserrorcode_15_0123.html
sourcePath: /source/zh/canncommercial/900/maintenref/troubleshooting/atlaserrorcode_15_0123.html
indexId: 123502f5dc39c7719af3b32152665bd4e54a6f70d76552ba06a01b0e4c9406f084
---
# E21001 File_Operation_Error_Open

#### Symptom

Failed to open file %s. Reason: %s.


#### Possible Cause

1. The file does not exist.
2. Insufficient file permissions.
3. Package installation error.


#### Solution

1. Configure the file path correctly.
2. Configure the file permissions correctly.
3. Reinstall the package.