Error in "Your first Aragon app" tutorial

[sohkai]

@yutarond commented on Fri Nov 16 2018

I tried following this "Your first Aragon app" tutorial. When I run aragon run command, got an error bellow:

 ❯ Start a local Ethereum network
   ⠴ Setting up a new chain from latest Aragon snapshot
     Starting a local chain from snapshot
   Check IPFS
   Publish app to APM
   Create DAO
   Open DAO

/Users/yutaro/.nodebrew/node/v9.5.0/lib/node_modules/@aragon/cli/node_modules/ganache-core/node_modules/level-codec/index.js:44
  return this._valueEncoding(opts).decode(value)
                                   ^
SyntaxError: Unexpected token o in JSON at position 1
    at Object.parse [as decode] (<anonymous>)
    at Codec.decodeValue (/Users/yutaro/.nodebrew/node/v9.5.0/lib/node_modules/@aragon/cli/node_modules/ganache-core/node_modules/level-codec/index.js:44:36)
    at /Users/yutaro/.nodebrew/node/v9.5.0/lib/node_modules/@aragon/cli/node_modules/ganache-core/node_modules/level-sublevel/nut.js:122:34
    at /Users/yutaro/.nodebrew/node/v9.5.0/lib/node_modules/@aragon/cli/node_modules/ganache-core/node_modules/encoding-down/index.js:57:5
    at /Users/yutaro/.nodebrew/node/v9.5.0/lib/node_modules/@aragon/cli/node_modules/ganache-core/node_modules/cachedown/index.js:61:5
    at /Users/yutaro/.nodebrew/node/v9.5.0/lib/node_modules/@aragon/cli/node_modules/ganache-core/lib/database/filedown.js:28:5
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:528:3)

[sohkai]

@yutarond I moved this repo to the CLI, since it appears that's where the issue is.

Seems like it's something to do with ganache, which is odd. Maybe there's something wrong with the new aragen snapshot @izqui?

[macor161]

I was experiencing the same issue since yesterday and I thought it was some kind of file corruption in npm. It turns out that a new version of ganache-core was released yesterday and it breaks all new versions of @aragon/cli.

https://www.npmjs.com/package/ganache-core/v/2.3.0

This is quite a major issue because everyone installing @aragon/cli or changing its version since yesterday will end up with a broken tool.

[macor161]

I submitted a pull request that uses ganache-core v2.2.1.
This is a temporary fix until we get to know exactly what in the new ganache-core version is causing the bug.

[sohkai]

Could be the snapshot db's format slightly changed, or they're just incompatible between versions of ganache. We probably need to regen aragen with the latest ganache-core.

[bingen]

Yes, indeed that seems to be the problem, The exact change that is breaking it is this one:
trufflesuite/ganache@22e3af6#diff-f7055d87f223a4d22d9d739ca35e954aR36
In particular, it seems to be the addition of encoding-down.

[bingen]

This is fixed temporarily in #280.
For a more stable solution, I opened a PR in ganache-core repo, not sure if that's the best way to fix it, but their tests are passing and our cli is working with it:
trufflesuite/ganache#239

[sohkai]

@galactusss @0x6431346e It looks like with the newest [email protected] the snapshot regression should be fixed. We should try unpinning and making sure everything works :).

[bingen]

Oh, I just pushed PR #302 but I still want to test it thoroughly. You can give it try though.

[0xGabi]

I tested all the steps on the tutorial and it seem the error was fixed with #302 PR
should close this? Or you want to test a bit more before @bingen @0x6431346e

[bingen]

It's fine for me if you tested it. I just merged #302. Thanks @galactusss !