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
 --> d081146c9bc0325bf71a72c72b686bb902423e39e8e5ac859df2675e206e403f:6:35
  |
6 |                     let sentVault: @FungibleToken.Vault
  |                                    ^^^^^^^^^^^^^^^^^^^^ got `FungibleToken.Vault`; consider using `{FungibleToken.Vault}`

error: cannot find type in this scope: `AuthAccount`
 --> d081146c9bc0325bf71a72c72b686bb902423e39e8e5ac859df2675e206e403f:8:36
  |
8 |                     prepare(signer: AuthAccount) {
  |                                     ^^^^^^^^^^^ not found in this scope

error: value of type `&Account` has no member `getCapability`
  --> d081146c9bc0325bf71a72c72b686bb902423e39e8e5ac859df2675e206e403f:17:29
   |
17 |                             .getCapability(/public/flowTokenReceiver)
   |                              ^^^^^^^^^^^^^ unknown member