# Access Control Error Codes

> **NOTE**
>
> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md).

## 12100001 Invalid Parameters

**Error Message**

Invalid Parameter. Error message: ${messageInfo}.

**Possible Causes**

This error code is reported when the parameter verification fails. The possible causes are as follows:
- The value of **tokenId** is **0**.
- The permission name is empty or exceeds 256 characters.
- The **flag** value in the permission authorization or revocation request is invalid.
- The parameters specified for registering a listener are incorrect.
- The specified context does not belong to the current application.
- The requested permissions do not belong to the same permission group.
- The requested permissions include permissions that are not declared by the application.
- The type of the requested global switch is invalid.

**Solution**

Correct invalid parameter values.


## 12100002 TokenId Not Exist

**Error Message**

TokenId does not exist.

**Possible Causes**

- The specified **tokenId** does not exist.
- The process of the specified **tokenId** is not an application process.

**Solution**

Set **tokenId** correctly.


## 12100003 Permission Not Exist

**Error Message**

Permission does not exist.

**Possible Causes**

- The specified **permissionName** does not exist.
- The specified **permissionName** does not match the **tokenId** in the permission authorization or revocation scenario.
- The specified **permissionName** is not a sensitive permission that requires user authorization.

**Solution**

Set **permissionName** correctly. For details, see [Permissions for All Applications](../../security/AccessToken/permissions-for-all.md).


## 12100004 Listener APIs Not Used in Pairs

**Error Message**

The API is not used in pair with others.

**Possible Causes**

1. One of the APIs that need to be used in pairs is repeatedly called.
2. One of the APIs that need to be used in pairs is independently called.

**Solution**

1. For the APIs that need to be used in pairs, for example, **on()** and **off()**, check whether **on()** with the same parameters is called again before **off()** is called.
2. For the APIs that need to be used in pairs, for example, **on()** and **off()**, check whether **off()** is called before **on()**.


## 12100005 Listener Overflows

**Error Message**

The number of listeners exceeds the limit.

**Possible Causes**

The number of listeners exceeds 200.

**Solution**

Release unused listeners in a timely manner.


## 12100006 Permission Granting or Revocation Not Supported

**Error Message**

The specified application does not support the permissions granted or ungranted as specified.

**Possible Causes**

1. The specified **tokenId** is the identity of a remote device. Distributed permission granting and revocation are not yet supported.
2. The specified **tokenId** belongs to a sandbox application, which is not allowed to request the specified permission.

**Solution**

1. Check whether the method of obtaining **tokenId** is correct.
2. Check whether the sandbox application works in restrictive mode. Most permissions cannot be granted to a sandbox application in restrictive mode.


## 12100007 System Service Not Working Properly

**Error Message**

The service is abnormal.

**Possible Causes**

1. The permission management service fails to start properly.
2. The data read or write via IPC fails.

**Solution**

Try again later or restart the device.


## 12100008 Out of Memory

**Error Message**

Out of memory.

**Possible Causes**

The system memory is insufficient.

**Solution**

Try again later or restart the device.


## 12100009 Internal Service Error

**Error Message**

Common inner error.

**Possible Causes**

An internal error occurs in the system service.

**Solution**

Analyze the fault log to identify the error.

## 12100010 Pending Request

**Error Message**

The request already exists.

**Possible Causes**

The last request has not been processed yet.

**Solution**

Wait until the last request is processed.


## 12100011 All Requested Permissions Granted

**Error Message**

All permissions in the permission list have been granted.

**Possible Causes**

All requested permissions have been granted.

**Solution**

No action is required. If this error code is returned, the permission has been granted and the permission settings dialog box will not be displayed.


## 12100012 Not All Permissions Are Rejected by the User

**Error Message**

The permission list contains the permission that has not been revoked by the user.

**Possible Causes**

The requested permissions include the permissions that are not rejected by the user.

**Solution**

Call **requestPermissionsFromUser** to request permissions from the user first.


## 12100013 Global Switch Enabled

**Error Message**

The specific global switch is already open.

**Possible Causes**

The global switch is already turned on.

**Solution**

No action is required. If this error code is returned, the global switch has been enabled and the dialog box for setting the global switch will not be displayed.