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`
 --> 66f5c897c0a3753e8eb8c49eab488b54172f004b3e00b266aa1d3eee49304963:2:16
  |
2 | prepare(signer: AuthAccount) {
  |                 ^^^^^^^^^^^ not found in this scope

error: cannot find variable in this scope: `AuthAccount`
 --> 66f5c897c0a3753e8eb8c49eab488b54172f004b3e00b266aa1d3eee49304963:3:11
  |
3 | let acct = AuthAccount(payer: signer)
  |            ^^^^^^^^^^^ not found in this scope