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
 --> 9174835bb1961ffb6e314806b665ef1020b4257db651e99f3f8944deb3149c92:6:35
  |
6 |                     let sentVault: @FungibleToken.Vault
  |                                    ^^^^^^^^^^^^^^^^^^^^ got `FungibleToken.Vault`; consider using `{FungibleToken.Vault}`

error: cannot find type in this scope: `AuthAccount`
 --> 9174835bb1961ffb6e314806b665ef1020b4257db651e99f3f8944deb3149c92:8:36
  |
8 |                     prepare(signer: AuthAccount) {
  |                                     ^^^^^^^^^^^ not found in this scope

error: value of type `&Account` has no member `getCapability`
  --> 9174835bb1961ffb6e314806b665ef1020b4257db651e99f3f8944deb3149c92:17:29
   |
17 |                             .getCapability(/public/flowTokenReceiver)
   |                              ^^^^^^^^^^^^^ unknown member