1# Metadata Binding Error Codes 2 3> **NOTE** 4> 5> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6 7## 32100001 File Creation Failed 8**Error Message** 9Internal handling failed. File creation failed. 10 11**Symptom** 12This error code is reported if a service error occurs when a certain **metadataBinding** API called. 13 14**Possible Cause** 15The service is abnormal. 16 17**Solution** 181. Retry the operation at a specified interval (for example, 1s) or at an exponential increase interval. 192. If the operation fails for three consecutive retries, return the original image. 20 21 22## 32100002 Encoding Failed 23**Error Message** 24Encoding failed. Possible causes: 1. Image processing error; 2. Channel coding error. 25 26**Symptom** 27This error code is reported if the **encodeImage** API fails because of an algorithm error. 28 29**Possible Cause** 30Algorithm execution fails because of memory allocation failures or other reasons. 31 32**Procedure** 331. Retry the operation at a specified interval (for example, 1s) or at an exponential increase interval. 342. If the operation fails for three consecutive retries, return the original image. 35 36## 32100003 Decoding Failed 37**Error Code Information** 38Decoding failed. Possible causes: 1. Image not encoded; 2. Image destroyed. 39 40**Symptom** 41This error code is reported if the **decodeImage** API fails because of an algorithm error. 42 43**Possible Cause** 44Algorithm execution fails because of memory allocation failures or other reasons. 45 46**Procedure** 471. Retry the operation at a specified interval (for example, 1s) or at an exponential increase interval. 482. If the operation fails for three consecutive retries, return an empty link. 49 50 51## 32100004 Subscription Failed 52**Error Code Information** 53Subscription failed. Possible causes: 1. Abnormal system capability; 2. IPC exception; 3. Algorithm loading exception. 54 55**Symptom** 56This error code is reported if subscription fails when the **on** API of the **metadataBinding** module is called. 57 58**Possible Cause** 59Subscription to change events has failed. 60 61**Procedure** 621. Retry the operation at a specified interval (for example, 1s) or at an exponential increase interval. 632. If the operation fails for three consecutive times, stop the retry. 64 65## 32100005 Unsubscription Failed 66 67**Error Code Information** 68Unsubscription failed. Possible causes: 1. Abnormal system capability; 2. IPC exception. 69 70**Symptom** 71This error code is reported if unsubscription fails when the **off** API of the **metadataBinding** module is called. 72 73**Possible Cause** 74Unsubscription from change events has failed. 75 76**Solution** 771. Retry the operation at a specified interval (for example, 1s) or at an exponential increase interval. 782. If the operation fails for three consecutive times, stop the retry. 79