[Error Code: 1101] error caused by: 1 error occurred: * transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed: error: cannot find declaration `FooToken1` in `7fe37c228f5fef28.FooToken1` --> 886f59f6abdd90c6bd3dc64d51e516d4c433256d3ff5a4a9eac0075e59b358a4:6:7 | 6 | import FooToken1 from 0x7fe37c228f5fef28 | ^^^^^^^^^ available exported declarations are: error: cannot infer type parameter: `T` --> 886f59f6abdd90c6bd3dc64d51e516d4c433256d3ff5a4a9eac0075e59b358a4:21:11 | 21 | if signer.storage.borrow<&FooToken1.Vault>(from: vaultData.storagePath) != nil { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: cannot infer type parameter: `T` --> 886f59f6abdd90c6bd3dc64d51e516d4c433256d3ff5a4a9eac0075e59b358a4:25:59 | 25 | let vault <- FooToken1.createEmptyVault(vaultType: Type<@FooToken1.Vault>()) | ^^^^^^^^^^^^^^^^^^^^^^^^ error: cannot infer type parameter: `T` --> 886f59f6abdd90c6bd3dc64d51e516d4c433256d3ff5a4a9eac0075e59b358a4:31:23 | 31 | let vaultCap = signer.capabilities.storage.issue<&FooToken1.Vault>( 32 | vaultData.storagePath 33 | ) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: cannot infer type parameter: `T` --> 886f59f6abdd90c6bd3dc64d51e516d4c433256d3ff5a4a9eac0075e59b358a4:37:26 | 37 | let receiverCap = signer.capabilities.storage.issue<&FooToken1.Vault>( 38 | vaultData.storagePath 39 | ) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Happy diving into the flow Remember to upgrade your contracts to 1.0!