Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: value of type `Transaction` has no member `account`
 --> 31e416e6fd0fe93ab57d42ab80ad02b1be41c6a6a2cdc6434d9b9d35fbc43a58:8:13
  |
8 |         self.account.storage.save(<-vault, to: /storage/testTokenAMinter)
  |              ^^^^^^^ unknown member

error: cannot find variable in this scope: `vault`
 --> 31e416e6fd0fe93ab57d42ab80ad02b1be41c6a6a2cdc6434d9b9d35fbc43a58:8:36
  |
8 |         self.account.storage.save(<-vault, to: /storage/testTokenAMinter)
  |                                     ^^^^^ not found in this scope

error: loss of resource
 --> 31e416e6fd0fe93ab57d42ab80ad02b1be41c6a6a2cdc6434d9b9d35fbc43a58:6:12
  |
6 |         let minter <- admin.createNewMinter(allowedAmount: UFix64.max)
  |             ^^^^^^