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Signed-off-by: Nunknown <sijunjie@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-inner-application-serviceExtensionContext.md

@@ -55,6 +55,7 @@ startAbility(want: Want, callback: AsyncCallback<void>): void;
 | 16000009 | Can not start ability in wukong mode. |
 | 16000010 | Can not operation with continue flag.        |
 | 16000011 | Context does not exist.        |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000051 | Network error. The network is abnormal. |
 | 16000052 | Free install not support. The application does not support freeinstall |
 | 16000053 | Not top ability. The application is not top ability. |
@@ -126,6 +127,7 @@ startAbility(want: Want, options?: StartOptions): Promise\<void>;
 | 16000009 | Can not start ability in wukong mode. |
 | 16000010 | Can not operation with continue flag.        |
 | 16000011 | Context does not exist.        |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000051 | Network error. The network is abnormal. |
 | 16000052 | Free install not support. The application does not support freeinstall |
 | 16000053 | Not top ability. The application is not top ability. |
@@ -195,6 +197,7 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback&lt;void&
 | 16000009 | Can not start ability in wukong mode. |
 | 16000010 | Can not operation with continue flag.        |
 | 16000011 | Context does not exist.        |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000051 | Network error. The network is abnormal. |
 | 16000052 | Free install not support. The application does not support freeinstall |
 | 16000053 | Not top ability. The application is not top ability. |
@@ -271,6 +274,7 @@ startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<
 | 16000009 | Can not start ability in wukong mode. |
 | 16000010 | Can not operation with continue flag.        |
 | 16000011 | Context does not exist.        |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000051 | Network error. The network is abnormal. |
 | 16000052 | Free install not support. The application does not support freeinstall |
 | 16000053 | Not top ability. The application is not top ability. |
@@ -346,6 +350,7 @@ startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, ca
 | 16000009 | Can not start ability in wukong mode. |
 | 16000010 | Can not operation with continue flag.        |
 | 16000011 | Context does not exist.        |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000051 | Network error. The network is abnormal. |
 | 16000052 | Free install not support. The application does not support freeinstall |
 | 16000053 | Not top ability. The application is not top ability. |
@@ -430,6 +435,7 @@ startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions):
 | 16000009 | Can not start ability in wukong mode. |
 | 16000010 | Can not operation with continue flag.        |
 | 16000011 | Context does not exist.        |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000051 | Network error. The network is abnormal. |
 | 16000052 | Free install not support. The application does not support freeinstall |
 | 16000053 | Not top ability. The application is not top ability. |
@@ -1312,6 +1318,7 @@ startAbilityByCall(want: Want): Promise&lt;Caller&gt;;
 | 16000007 | Service busyness. There are concurrent tasks, waiting for retry. |
 | 16000008 | Crowdtest App Expiration. |
 | 16000009 | Can not start ability in wukong mode. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal Error. |
 
 **示例：**

zh-cn/application-dev/reference/apis/js-apis-inner-application-uiAbilityContext.md

@@ -54,6 +54,7 @@ startAbility(want: Want, callback: AsyncCallback<void>): void;
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -117,6 +118,7 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void&
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -189,6 +191,7 @@ startAbility(want: Want, options?: StartOptions): Promise<void>;
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -257,6 +260,7 @@ startAbilityForResult(want: Want, callback: AsyncCallback<AbilityResult>):
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -324,6 +328,7 @@ startAbilityForResult(want: Want, options: StartOptions, callback: AsyncCallback
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -401,6 +406,7 @@ startAbilityForResult(want: Want, options?: StartOptions): Promise<AbilityRes
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -471,6 +477,7 @@ startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncC
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -542,6 +549,7 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options: StartOp
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -621,6 +629,7 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options?: StartO
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -1569,6 +1578,7 @@ startAbilityByCall(want: Want): Promise<Caller>;
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -1675,6 +1685,7 @@ startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -1746,6 +1757,7 @@ startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, ca
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |
@@ -1819,6 +1831,7 @@ startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions):
 | 16000009 | An ability cannot be started or stopped in Wukong mode. |
 | 16000010 | The call with the continuation flag is forbidden. |
 | 16000011 | The context does not exist. |
+| 16000012 | The previous ability is starting, wait start later.        |
 | 16000050 | Internal error. |
 | 16000053 | The ability is not on the top of the UI. |
 | 16000055 | Installation-free timed out. |

zh-cn/application-dev/reference/errorcodes/errorcode-ability.md

@@ -181,6 +181,23 @@ The context does not exist.
 **处理步骤**
 
 请检查上下文对象是否可用。
+## 16000012 上一个Ability未启动完成，先缓存在队列中等待后续启动。
+
+**错误信息**
+
+The previous ability is starting, wait start later.
+
+**错误描述**
+
+需要启动的Ability过多，由于系统处理能力有限，会先将请求缓存在队列中，按照顺序依次处理。
+
+**可能原因**
+
+系统并发大。
+
+**处理步骤**
+
+无需处理，等待启动即可。
 
 ## 16000050 内部错误