Error: 1002: Verification Error: Execution: Could not convert parameter `tx` between node and runtime

I’m just following the tutorial at https://substrate.dev/docs/en/tutorials/create-your-first-substrate-chain/interact on OSX 11.1 and rust 14.9. - I needed to bump the backend to version 2.0.1 to get the back end to work.

The front end runs and trying to do any transfer I get the error in the subject line:

😞 Transaction Failed: Error: 1002: Verification Error: Execution: Could not convert parameter `tx` between node and runtime: No such variant in enum MultiAddress: RuntimeApi, Execution: Could not convert parameter `tx` between node and runtime: No such variant in enum MultiAddress

I see this being chatted about in the element chat room but could not see anyone mentioning a fix - any suggestions?

[NukeManDan]

If you are using the node (backend) v2.0.1: Here is a fix for those struggling with the frontend v2.0.0. instead you should use the master branch of the frontend repo

To get the master branch cloned:

git clone -b master --depth 1 https://github.com/substrate-developer-hub/substrate-front-end-template

and then edit the following file for the frontend to replace the AccountId fields to MultiAddress

src/config/types.json

{
"Address": "MultiAddress",
"LookupSource": "MultiAddress"
}

Then install packages and start the dev server:

cd substrate-front-end-template
yarn install
yarn start

---

I have made a patch to use instead of manually editing the file you could use instead as well:

git clone -b NukeManDan-patch-1 --depth 1 https://github.com/substrate-developer-hub/substrate-front-end-template

#159 should fix the issue.

[tansaku]

thanks @NukeManDan you’re correct I was logged in as Alice, but my transfers to Bob were also not working, but I have figured it out - the 1000000000000 unit transfers were not showing up for Bob as he already head MUnit amounts. I transferred to Charlie and that worked, and when I transferred 1000000000000000000 to Bob that showed up.

Restarting with the empty {} gives the same error as before:

😞 Transaction Failed: Error: 1002: Verification Error: Execution: Could not convert parameter tx between node and runtime: No such variant in enum MultiAddress: RuntimeApi, Execution: Could not convert parameter tx between node and runtime: No such variant in enum MultiAddress

but adding in the MultiAddress settings makes it all work fine. I tried the empty {} with restarts of both front and back end to no avail, but with the MultiAddress change I’m good to go - thanks so much for your help.