1e41f4b71Sopenharmony_ci# VPN Error Codes 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci> **NOTE** 4e41f4b71Sopenharmony_ci> 5e41f4b71Sopenharmony_ci> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ci## 2203001 Failed to Create a VPN 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Error Information** 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ciVPN creation denied. Check the user type. 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci**Description** 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciThis error code is reported if a VPN fails to be created. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci**Possible Causes** 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ciThe login user does not have the operation permission. Specifically, the GUEST user does not have the permission to call the **setUp** API. 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci**Solution** 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ciCheck the type of the login user. 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci## 2203002 VPN Already Exists 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci**Error Information** 29e41f4b71Sopenharmony_ci 30e41f4b71Sopenharmony_ciVPN already exists. 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci**Description** 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ciThis error code is reported if a VPN already exists. 35e41f4b71Sopenharmony_ci 36e41f4b71Sopenharmony_ci**Possible Causes** 37e41f4b71Sopenharmony_ci 38e41f4b71Sopenharmony_ciThe VPN has been created. 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ci**Solution** 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ciCall the **destroy** API to destroy the existing VPN, and then call the **setUp** API. 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci## 2203004 Invalid Descriptor 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ci**Error Information** 48e41f4b71Sopenharmony_ci 49e41f4b71Sopenharmony_ciInvalid socket file descriptor. 50e41f4b71Sopenharmony_ci 51e41f4b71Sopenharmony_ci**Description** 52e41f4b71Sopenharmony_ci 53e41f4b71Sopenharmony_ciThis error code is reported if the socket file descriptor is invalid. 54e41f4b71Sopenharmony_ci 55e41f4b71Sopenharmony_ci**Possible Causes** 56e41f4b71Sopenharmony_ci 57e41f4b71Sopenharmony_ciA TCP socket connection fails to be established. 58e41f4b71Sopenharmony_ci 59e41f4b71Sopenharmony_ci**Solution** 60e41f4b71Sopenharmony_ci 61e41f4b71Sopenharmony_ciCheck whether a TCP socket connection is set up successfully. 62