Flow•10mo ago

[C1.0] How to upgrade a contract interface with Resource already defined before Crescendo? 🧵

[Resolved]~~[C1.0] How to upgrade a contract interface with Resource already defined before Crescendo? 🧵~~

4 Replies

Needle•10mo ago

I've created a thread for your message. Please continue any relevant discussion in this thread. You can rename this thread using /title <new title> If this is a technical question that others may benefit from, considering also asking it on Stackoverflow: https://stackoverflow.com/questions/ask?tags=onflow-cadence

BohaoOP•10mo ago

if I keep the resource definination, then:

(base) > $ flow-c1 migrate stage FixesFungibleTokenInterface --network=testnet                                                                                        ⬡ 18.16.0 [±cadence1.0 ●●]

error: resource declarations cannot be nested inside contract interface declarations
   --> cadence/contracts/FixesFungibleTokenInterface.cdc:198:25
    |
198 |     access(all) resource Vault: IVault {}
    |                          ^^^^^

✘ 74ad08095d92192a.FixesFungibleTokenInterface 

Staging results: 1 contract failed to stage

(base) > $ flow-c1 migrate stage FixesFungibleTokenInterface --network=testnet                                                                                        ⬡ 18.16.0 [±cadence1.0 ●●]

error: resource declarations cannot be nested inside contract interface declarations
   --> cadence/contracts/FixesFungibleTokenInterface.cdc:198:25
    |
198 |     access(all) resource Vault: IVault {}
    |                          ^^^^^

✘ 74ad08095d92192a.FixesFungibleTokenInterface 

Staging results: 1 contract failed to stage

If I remove the resource Vault defination, then:

(base) > $ flow-c1 migrate stage FixesFungibleTokenInterface --network=testnet                                                                                        ⬡ 18.16.0 [±cadence1.0 ●●]

error: missing DeclarationKindResource declaration `Vault`
  --> cadence/contracts/FixesFungibleTokenInterface.cdc:21:31
   |
21 | access(all) contract interface FixesFungibleTokenInterface {
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^

✘ 74ad08095d92192a.FixesFungibleTokenInterface 

Staging results: 1 contract failed to stage

(base) > $ flow-c1 migrate stage FixesFungibleTokenInterface --network=testnet                                                                                        ⬡ 18.16.0 [±cadence1.0 ●●]

error: missing DeclarationKindResource declaration `Vault`
  --> cadence/contracts/FixesFungibleTokenInterface.cdc:21:31
   |
21 | access(all) contract interface FixesFungibleTokenInterface {
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^

✘ 74ad08095d92192a.FixesFungibleTokenInterface 

Staging results: 1 contract failed to stage

~~It seems that I cannot pass the verification, so I can only complete the stage by skipping the verification with --skip-validation.~~ Still failed in the staging report...

Unknown User•10mo ago

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BohaoOP•10mo ago

Oh, it works! Just need to directly add an interface keyword...

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[C1.0] How to upgrade a contract interface with Resource already defined before Crescendo? 🧵

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