CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 2 errors occurred: * transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed: error: cannot find variable in this scope: `ExampleNFT` --> 7df2a4ca1e02db4bc0f8ca90a9219b8ddcb6602f0f9410deaa5716ddbc76b867:28:30 | 28 | let collection <- ExampleNFT.createEmptyCollection() | ^^^^^^^^^^ not found in this scope error: cannot find variable in this scope: `acct` --> 7df2a4ca1e02db4bc0f8ca90a9219b8ddcb6602f0f9410deaa5716ddbc76b867:31:8 | 31 | acct.save<@ExampleNFT.Collection>(<-collection, to: ExampleNFT.CollectionStoragePath) | ^^^^ not found in this scope error: cannot find variable in this scope: `ExampleNFT` --> 7df2a4ca1e02db4bc0f8ca90a9219b8ddcb6602f0f9410deaa5716ddbc76b867:31:60 | 31 | acct.save<@ExampleNFT.Collection>(<-collection, to: ExampleNFT.CollectionStoragePath) | ^^^^^^^^^^ not found in this scope error: missing initialization of field `depositRef` in type `Transaction` --> 7df2a4ca1e02db4bc0f8ca90a9219b8ddcb6602f0f9410deaa5716ddbc76b867:14:12 | 14 | let depositRef: &{NonFungibleToken.CollectionPublic} | ^^^^^^^^^^ not initialized * checking sequence number failed: [Error Code: 1007] invalid proposal key: public key 0 on account 3da781ebb211fca7 has sequence number 11, but given 1