1# Notification 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## 1600001 Internal Error 8 9**Error Message** 10 11Internal error. 12 13**Description** 14 15This error code is reported when an error occurs during internal processing, such as multi-thread processing or internal pointer checks. 16 17**Cause** 18 19Common kernel errors such as multi-thread processing and internal processing errors occur. 20 21**Solution** 22 23Make sure the system resources are sufficient. 24 25## 1600002 Marshalling or Unmarshalling Error 26 27**Error Message** 28 29Marshalling or unmarshalling error. 30 31**Description** 32 33This error code is reported when a marshalling or unmarshalling error occurs before data transmission. 34 35**Cause** 36 37A parameter mismatch is detected between the application and the notification service. 38 39**Solution** 40 41Make sure the application SDK version matches the system version. 42 43## 1600003 Failed to Connect to the Notification Service 44 45**Error Message** 46 47Failed to connect to the service. 48 49**Description** 50 51This error code is reported when the application fails to connect to the notification service. 52 53**Cause** 54 55The notification service is busy or abnormal. 56 57**Solution** 58 59Restart the system. 60 61## 1600004 Notification Disabled 62 63**Error Message** 64 65Notification disabled. 66 67**Description** 68 69This error code is reported when notification is disabled. 70 71**Cause** 72 73The notification feature is not enabled for the application. 74 75**Solution** 76 77Enable notification for the application in the notification settings. 78 79## 1600005 Notification Slot Disabled 80 81**Error Message** 82 83Notification slot disabled. 84 85**Description** 86 87This error code is reported when the notification slot is not available. 88 89**Cause** 90 91The notification slot is disabled or has not been added. 92 93**Solution** 94 951. Access the notification settings and check whether the application has the notification slot. If no, add it. 96 972. Make sure the notification slot is enabled. 98 99## 1600006 Notification Deletion Failed 100 101**Error Message** 102 103Notification deletion disabled. 104 105**Description** 106 107This error code is reported when notification deletion is disabled. 108 109**Cause** 110 111The notification attribute **isUnremovable** is set to true. 112 113**Solution** 114 115Enable notification deletion. For details, see [NotificationRequest](./js-apis-inner-notification-notificationRequest.md). 116 117## 1600007 Notification Not Found 118 119**Error Message** 120 121The notification does not exist. 122 123**Description** 124 125This error code is reported when the notification service could not find the notification. 126 127**Cause** 128 129The notification has been canceled or deleted. 130 131**Solution** 132 133N/A 134 135## 1600008 User Not Found 136 137**Error Message** 138 139The user does not exist. 140 141**Description** 142 143This error code is reported when the specified user is not found in the information system. 144 145**Cause** 146 147The user information passed is incorrect. 148 149**Solution** 150 151Verify the user information. 152 153## 1600009 Notification Sending Limit Reached 154 155**Error Message** 156 157The notification sending frequency reaches the upper limit. 158 159**Description** 160 161This error code is reported when the notification sending frequency reaches the upper limit. 162 163**Cause** 164 165More than 10 notifications are sent per second, or more than 20 notifications are updated per second. 166 167**Solution** 168 169Reduce the notification sending frequency to no more than 10 per second. 170 171## 1600010 Distributed Operation Failed 172 173**Error Message** 174 175Distributed operation failed. 176 177**Description** 178 179This error code is reported when an error occurs with the distributed database operation or distributed API invoking. 180 181**Cause** 182 183The distributed database could not be operated or the distributed API could not be invoked. 184 185**Solution** 186 187Verify the distributed connection. 188 189## 1600011 Failed to Read Template Configuration 190 191**Error Message** 192 193Failed to read the template configuration. 194 195**Description** 196 197This error code is reported when the attempt to read the template configuration file fails. 198 199**Cause** 200 201The template configuration file is lost in the system. 202 203**Solution** 204 205Check for the template configuration file: /system/etc/notification_template/external.json. 206 207## 1600012 Insufficient Memory Space 208 209**Error Message** 210 211No memory space. 212 213**Description** 214 215This error code is reported when a memory allocation error occurs. 216 217**Cause** 218 219A memory allocation error occurs. 220 221**Solution** 222 223Ensure sufficient system memory. 224 225## 1600013 Notification Pop-up Window Displayed 226 227**Error Message** 228 229A notification dialog box is already displayed. 230 231**Description** 232 233This error code is reported when the notification pop-up window is displayed. 234 235**Cause** 236 237The notification pop-up window is displayed. 238 239**Solution** 240 241Check whether the notification pop-up window is displayed. 242 243 244## 1600014 No Related Permission 245 246**Error Message** 247 248No permission. 249 250**Description** 251 252This error code is reported when you do not have the related permission. 253 254**Cause** 255 256You do not have the related permission. 257 258**Solution** 259 260Check whether you have the related permission. 261 262## 1600015 Duplicate Configurations not Allowed for the Current Notification Status 263 264**Error Message** 265 266The current notification status does not support duplicate configurations. 267 268**Description** 269 270This error code is reported when the current notification status does not support duplicate configurations. 271 272**Cause** 273 274The current notification status does not support duplicate configurations. 275 276**Solution** 277 278Check whether the notification status is duplicately configured. 279 280## 1600016 Updated Notification Version Outdated 281 282**Error Message** 283 284The notification version for this update is too low. 285 286**Description** 287 288This error code is reported when the notification version for this update is outdated. 289 290**Cause** 291 292The notification version for this update is outdated. 293 294**Solution** 295 296Check the notification version. 297 298## 1600017 No Configured Proxy Relationship 299 300**Error Message** 301 302There is no corresponding agent relationship configuration. 303 304**Description** 305 306This error code is reported when no proxy relationship is configured. 307 308**Cause** 309 310No corresponding proxy relationship is configured. 311 312**Solution** 313 314Check the proxy relationship configuration. 315 316## 1600018 Notification Settings Page Already Displayed 317 318**Error Message** 319 320The notification settings window is already displayed. 321 322**Description** 323 324This error code is reported when the notification settings page has been displayed. 325 326**Cause** 327 328The notification settings page has been displayed. 329 330**Solution** 331 332Check whether the notification settings page is displayed. 333 334## 1600019 No Configuration Information for a Do Not Disturb Profile 335 336**Error Message** 337 338The do-not-disturb profile does not exist. 339 340**Description** 341 342This error code is reported when the configuration information corresponding to the Do Not Disturb profile ID does not exist. 343 344**Cause** 345 346No configuration information corresponding to the Do Not Disturb profile ID exists. 347 348**Solution** 349 350Check whether the queried Do Not Disturb profile ID is correct. 351 352## 2300007 Network Access Failure 353 354**Error Message** 355 356Network unreachable. 357 358**Description** 359 360This error code is reported when the network cannot be accessed. 361 362**Cause** 363 364The network cannot be accessed. 365 366**Solution** 367 368Check the network status. 369 370## 17700001 Bundle Name Not Found 371 372**Error Message** 373 374The specified bundle name was not found. 375 376**Description** 377 378This error code is reported when the bundle name is incorrect or the application is not installed. 379 380**Cause** 381 3821. The bundle name is incorrect. 3832. The application is not installed. 384 385**Solution** 386 3871. Verify the bundle name and make sure the application is installed. 388