Usage of FakeTransaction from ethereumjs-tx

I have a fairly simple setup: deploy some contracts and then run some tests. Initially it worked via ganache-cli, but encountered an issue which is addressed in this PR: https://github.com/trufflesuite/ganache-core/pull/130.

To fix it I started to use server from ganache-core, but strangely enough the results were bit different and core breaks first time eth_sendRawTransaction is used. cli seems to work fine. The transaction’s data is exactly the same and contracts are deployed successfully in both cases. The error message said: TXRejectedError: the tx doesn\'t have the correct nonce. account has nonce of: 0 tx has nonce of: 6, but it seemed rather suspicious as I always obtain nonce directly from the rpc node via eth_getTransactionCount. I pinned down the problem to missing from field after the transaction was re-created on the server side. This: https://github.com/unao/ganache-core/commit/f656b6e846b13d6896248ef7468fedd280cd6e7d seems to fix the issue.

To be honest I do not understand what is the root cause of it and if my hacky fix is safe/good enough.

The real mysterious part is why it works in case of cli, but not core. From what I saw cli just starts the server. My best hypotheses would be that webpack build somehow modifies the semantics slightly.

Your Environment

• Version used: ganache-core 2.1.2, ganache CLI v6.1.3 (ganache-core: 2.1.2)
• Environment name and version (e.g. PHP 5.4 on nginx 1.9.1): node 8.11.2
• Server type and version:
• Operating System and version: ubuntu 16.04
• Link to your project:

[benjamincburns]

The real mysterious part is why it works in case of cli, but not core. From what I saw cli just starts the server. My best hypotheses would be that webpack build somehow modifies the semantics slightly.

Just solved that mystery - ganache-core depended on ethereumjs-tx@^1.3.0 and 1.3.4 was the version found in its package-lock.json however it seems that npm doesn’t give a hoot about transitive dependencies’ package-lock.json files, so when I refreshed that file prior to cutting the last release it selected ethereumjs-tx@1.3.6, putting ethereumjs/ethereumjs-tx#113 into play for ganache-cli@6.1.5.

I’ve fixed this by pinning ganache-core’s ethereumjs-tx dependency to 1.3.4 (dropped the carat operator), and releasing ganache-core@2.1.5. This is the only difference between 2.1.4 and 2.1.5. I’m now in the process of releasing ganache-cli@6.1.6 which will point at this new release. I’ll catch up with the Ganache project (electron UI) tomorrow.

Thanks for this, @kipliklotrika!

[ajhodges]

I think this issue was related to a bug that was fixed in https://github.com/ethereumjs/ethereumjs-tx/pull/118

ethereumjs-tx@1.3.7 contains the fix! Should also fix https://github.com/trufflesuite/ganache-cli/issues/523