Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: invalid use of interface as type
 --> d9642828e105601fe9dd9e3797fc61ccb5a5df2ba89d312c29b7c7d54d007ef1:6:16
  |
6 |  let sentVault: @FungibleToken.Vault
  |                 ^^^^^^^^^^^^^^^^^^^^ got `FungibleToken.Vault`; consider using `{FungibleToken.Vault}`

error: cannot find type in this scope: `AuthAccount`
 --> d9642828e105601fe9dd9e3797fc61ccb5a5df2ba89d312c29b7c7d54d007ef1:7:17
  |
7 |  prepare(signer: AuthAccount) {
  |                  ^^^^^^^^^^^ not found in this scope

error: cannot find variable in this scope: `AuthAccount`
 --> d9642828e105601fe9dd9e3797fc61ccb5a5df2ba89d312c29b7c7d54d007ef1:8:15
  |
8 |  let account = AuthAccount(payer: signer)
  |                ^^^^^^^^^^^ not found in this scope

error: mismatched types
  --> d9642828e105601fe9dd9e3797fc61ccb5a5df2ba89d312c29b7c7d54d007ef1:20:34
   |
20 |  self.tokenReceiver.deposit(from: <-self.sentVault)
   |                                   ^^^^^^^^^^^^^^^^ expected `{FungibleToken.Vault}`, got `FungibleToken.Vault`