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
 --> cac0640cd3397d0769bb979db309991566e5a6fbfe1cb0ba315edc773646fa68:6:17
  |
6 |   let sentVault: @FungibleToken.Vault
  |                  ^^^^^^^^^^^^^^^^^^^^ got `FungibleToken.Vault`; consider using `{FungibleToken.Vault}`

error: cannot find type in this scope: `AuthAccount`
 --> cac0640cd3397d0769bb979db309991566e5a6fbfe1cb0ba315edc773646fa68:7:18
  |
7 |   prepare(signer: AuthAccount) {
  |                   ^^^^^^^^^^^ not found in this scope

error: value of type `&Account` has no member `getCapability`
  --> cac0640cd3397d0769bb979db309991566e5a6fbfe1cb0ba315edc773646fa68:16:7
   |
16 |       .getCapability(/public/flowTokenReceiver)
   |        ^^^^^^^^^^^^^ unknown member