I am working on Integration component(which will shows current market rate of our deployed token) .whenever i deployed that code it shows the code is not Upgrade safe i am using Buidler plugin for deployment.can anyone help me to sort out why this error occuring.herewith i am attaching some screen…

[image] Prabhakaran: contracts\interface\EnbOracle.sol:21: Defining structs like Report is not yet supported If you have manually checked for storage layout compatibility, you can skip this check with the unsafeAllowCustomTypes flag https://zpl.in/upgrades/error-007 You have to use the flag…

Hey, the OpenZeppelin team just released a new version for upgrading contract, you can have a check at here: First release of OpenZeppelin Contracts Upgradeable . Please format your code by ```

Can you show us the full error message you are seeing?

Hi @frangio thanks for responding my query.This was the full error message i got. (node:13388) UnhandledPromiseRejectionWarning: Error: Contract EnbOracle is not upgrade safe contracts\interface\EnbOracle.sol:21: Defining structs like Report is not yet supported If you have manually checked for …

Hi @Skyge thanks , i will check it out the First release of OpenZeppelin Contracts Upgradeable

Hi @frangio i add { unsafeAllowCustomTypes: true } that too … but i got same error. [2020-11-15]

Ok, I see. The issue is that if you’re providing the options argument you should also provide the args argument (in this case an empty array). It should be: upgrades.deployProxy(EnbOracle, [], { unsafeAllowCustomTypes: true }); We could infer this automatically, I will take a look at that during t…

After your suggestion I added empty array too but it shows this kind of error and warning. [2020-11-16]

Hi @Prabhakaran , You will continue to get the warning about Potentially unsafe deployment of EnbOracle to remind you to manually check the storage layout for incompatibilities during upgrades.

Thanks for the response @abcoathup . “how to manually check the storage incompatibility” ,can you please suggest on how to do this.

Hi @Prabhakaran , [image] Prabhakaran: “how to manually check the storage incompatibility” ,can you please suggest on how to do this. Write higher level tests that set state prior to upgrade and then check state after the upgrade to ensure that state is maintained. Every state variable shoul…

Contract is not upgrade safe, Defining structs is not yet supported

Support Upgrades

frangio January 27, 2021, 6:54pm 15

@Prabhakaran The latest release of the Upgrades plugins supports structs. Storage is now automatically checked for compatibility. Take a look at the announcement!

Topic		Replies	Views
Defining structs like `RoleData` is not yet supported Upgrades	2	1356	January 27, 2021
Defining structs like 'Snapshots' is not yet supported when deploying ERC20SnapshotUpgradeable Upgrades	7	2524	January 27, 2021
OpenZeppelin Upgrades: Step by Step Tutorial for Hardhat Guides and Tutorials upgrades-plugins , hardhat	39	54918	November 28, 2023
Types/values length mismatch Upgrades	12	5729	December 16, 2020
Upgrades with Peace of Mind: "Structs" Edition Announcements	1	2763	January 27, 2021

Contract is not upgrade safe, Defining structs is not yet supported

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