Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: cannot find type in this scope: `AuthAccount`
 --> 01d0e05baf6c92b79a5c597344da74016600f334bf38bda41c88a0d426031197:3:20
  |
3 |     prepare(signer: AuthAccount) {
  |                     ^^^^^^^^^^^ not found in this scope

error: cannot find variable in this scope: `AuthAccount`
 --> 01d0e05baf6c92b79a5c597344da74016600f334bf38bda41c88a0d426031197:9:22
  |
9 |         let account = AuthAccount(payer: signer)
  |                       ^^^^^^^^^^^ not found in this scope