Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: missing initialization of field `nftCollection` in type `Transaction`
   --> 3a63f1646cef1d6f310642ac6e37ea1db2d683f6558581a1e0024575c8615d39:876:8
    |
876 |     let nftCollection: &{NonFungibleToken.Receiver}
    |         ^^^^^^^^^^^^^ not initialized