Truffle: Truffle Debug: TypeError: Cannot read property 'sourcePath' of undefined

[jleeh]

Environment

• OS: W10 Pro 1803
• Truffle v4.1.12 (core: 4.1.12)
• Solidity v0.4.24 (solc-js)
• Ganache CLI v6.1.3 (ganache-core: 2.1.2)
• NodeJS v8.9.3

Issue

Every time I try to debug a tx, I get the following:

-> truffle debug 0x703ae6c18730a773f16b289b5277305eee9eb9441c371cf403137e9268c61402

Compiling ./contracts/ERC20.sol...
Compiling ./contracts/ERC20Basic.sol...
Compiling ./contracts/ERC677.sol...
Compiling ./contracts/LinkPool.sol...
Compiling ./contracts/LinkToken.sol...
Compiling ./contracts/Migrations.sol...
Compiling ./contracts/Node.sol...
Compiling ./contracts/NodeFactory.sol...
Compiling ./contracts/NodeStaking.sol...
Compiling ./contracts/Ownable.sol...
Compiling ./contracts/PoolOwners.sol...
Compiling ./contracts/PoolStorage.sol...
Compiling ./contracts/PoolStorageFactory.sol...
Compiling ./contracts/SafeMath.sol...
Compiling ./contracts/interface/NodeArithmeticInterface.sol...
Compiling ./contracts/interface/NodeFactoryInterface.sol...
Compiling ./contracts/interface/NodeInterface.sol...
Compiling ./contracts/interface/PoolStorageFactoryInterface.sol...
Compiling ./contracts/interface/PoolStorageInterface.sol...
Compiling ./contracts/lib/NodeArithmetic.sol...

Gathering transaction data...

redux-saga error: uncaught at session.saga
at session.saga
 TypeError: Cannot read property 'sourcePath' of undefined
    at recordSources$ (/usr/lib/node_modules/truffle/build/webpack:/.-debugger/dist/debugger.js:3734:1)
    at tryCatch (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:62:15)
    at Generator.invoke [as _invoke] (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:296:1)
    at Generator.prototype.(anonymous function) [as next] (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:114:1)
    at tryCatch (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:62:15)
    at maybeInvokeDelegate (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:358:1)
    at Generator.invoke [as _invoke] (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:270:1)
    at Generator.prototype.(anonymous function) [as next] (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:114:1)
    at next (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/proc.js:311:1)
    at currCb (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/proc.js:388:1)
    at /usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/proc.js:499:1
    at exec (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/scheduler.js:19:1)
    at flush (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/scheduler.js:60:1)
    at asap (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/scheduler.js:33:1)
    at Array.<anonymous> (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/channel.js:185:1)
    at Object.emit (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/channel.js:26:1)
    at Object.dispatch (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/redux-saga/es/internal/middleware.js:67:1)
    at new Session (/usr/lib/node_modules/truffle/build/webpack:/.-debugger/dist/debugger.js:2887:1)
    at Function._callee$ (/usr/lib/node_modules/truffle/build/webpack:/.-debugger/dist/debugger.js:2712:1)
    at tryCatch (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:62:15)
    at Generator.invoke [as _invoke] (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:296:1)
    at Generator.prototype.(anonymous function) [as next] (/usr/lib/node_modules/truffle/build/webpack:/Users/gnidan/src/work/truffle/~/regenerator-runtime/runtime.js:114:1)

Notice the path of /Users/gnidan/ being referenced many times in the stacktrace, that doesn't exist on my system and can only think it refers to @gnidan.

Additional Information

This only started occurring once I updated the dependencies, latest version of truffle/ganache-cli and our dev deps. I could rectify this issue by downgrading to truffle version that was sub 4.1.3 or so, but now when I downgrade, I always get different debugging errors.

Our package.json deps:

"devDependencies": {
    "ascii-art": "^1.4.2",
    "autoprefixer": "6.5.1",
    "babel-core": "6.17.0",
    "babel-eslint": "7.1.1",
    "babel-jest": "17.0.2",
    "babel-loader": "6.2.7",
    "babel-preset-react-app": "^2.0.1",
    "case-sensitive-paths-webpack-plugin": "1.1.4",
    "chalk": "1.1.3",
    "connect-history-api-fallback": "1.3.0",
    "cross-spawn": "4.0.2",
    "css-loader": "0.26.0",
    "detect-port": "1.0.1",
    "dotenv": "2.0.0",
    "eslint": "3.8.1",
    "eslint-config-react-app": "^0.5.0",
    "eslint-loader": "1.6.0",
    "eslint-plugin-flowtype": "2.21.0",
    "eslint-plugin-import": "2.0.1",
    "eslint-plugin-jsx-a11y": "2.2.3",
    "eslint-plugin-react": "6.4.1",
    "extract-text-webpack-plugin": "1.0.1",
    "file-loader": "0.9.0",
    "filesize": "3.3.0",
    "fs-extra": "0.30.0",
    "gzip-size": "3.0.0",
    "html-webpack-plugin": "2.24.0",
    "http-proxy-middleware": "0.17.2",
    "jest": "18.1.0",
    "json-loader": "0.5.4",
    "object-assign": "4.1.0",
    "path-exists": "2.1.0",
    "postcss-loader": "1.0.0",
    "promise": "7.1.1",
    "react-dev-utils": "^0.4.2",
    "recursive-readdir": "2.1.0",
    "strip-ansi": "3.0.1",
    "style-loader": "0.13.1",
    "truffle-contract": "^1.1.8",
    "truffle-solidity-loader": "0.0.8",
    "url-loader": "0.5.7",
    "web3-utils": "^1.0.0-beta.26",
    "webpack": "1.14.0",
    "webpack-dev-server": "1.16.2",
    "webpack-manifest-plugin": "1.1.0",
    "whatwg-fetch": "1.0.0",
    "simple-line-icons": "^2.4.1"
  },
  "dependencies": {
    "bootstrap": "^3.3.7",
    "dotenv": "^2.0.0",
    "es6-promise": "^4.2.2",
    "isomorphic-fetch": "^2.2.1",
    "lodash": "^4.17.4",
    "node-waves": "^0.7.6",
    "prop-types": "^15.6.1",
    "react": "^15.4.2",
    "react-bootstrap": "^0.32.1",
    "react-dom": "^15.4.2",
    "react-highcharts": "^16.0.2",
    "react-router": "^4.2.0",
    "react-router-dom": "^4.2.2",
    "react-table": "^6.8.5",
    "truffle-debug-utils": "^1.0.0",
    "truffle-debugger": "^1.1.0",
    "web3": "^1.0.0-beta.27",
    "zeppelin-solidity": "^1.3.0"
  }

I've looked at similar issues online and I've tried actions such as deleting the build folder, running migrate with truffle migrate --reset --compile-all and none of has fixed the issue or changed the error.

[cgewecke]

Hi @jleeh thanks for reporting this. It looks like something went wrong with our webpack build in the most recent release - we'll be patching it shortly. Will ping you here when that's fixed.

[cgewecke]

@jleeh. This should be fixed in 4.1.13. Please ping if you continue to see it.

[jleeh]

@cgewecke I've updated truffle to 4.1.3, debugger is at 4.0.2 and I'm getting a different, but similar error (looks same as #998):

redux-saga error: uncaught at session.saga
at session.saga
 TypeError: Cannot destructure property `sourcePath` of 'undefined' or 'null'.
    at recordSources (/usr/lib/node_modules/truffle/build/webpack:/packages/truffle-debugger/dist/debugger.js:3445:36)
    at recordSources.next (<anonymous>)
    at session.saga (/usr/lib/node_modules/truffle/build/webpack:/packages/truffle-debugger/dist/debugger.js:3370:1)
    at saga.next (<anonymous>)
    at next (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/proc.js:311:1)
    at currCb (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/proc.js:388:1)
    at /usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/proc.js:499:1
    at exec (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/scheduler.js:19:1)
    at flush (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/scheduler.js:60:1)
    at asap (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/scheduler.js:33:1)
    at Array.<anonymous> (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/channel.js:185:1)
    at Object.emit (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/channel.js:26:1)
    at Object.dispatch (/usr/lib/node_modules/truffle/build/webpack:/~/redux-saga/es/internal/middleware.js:67:1)
    at new Session (/usr/lib/node_modules/truffle/build/webpack:/packages/truffle-debugger/dist/debugger.js:2157:1)
    at /usr/lib/node_modules/truffle/build/webpack:/packages/truffle-debugger/dist/debugger.js:2007:1
    at Generator.next (<anonymous>)
    at step (/usr/lib/node_modules/truffle/build/webpack:/~/babel-runtime/helpers/asyncToGenerator.js:17:1)
    at /usr/lib/node_modules/truffle/build/webpack:/~/babel-runtime/helpers/asyncToGenerator.js:35:1
    at new Promise (<anonymous>)
    at new F (/usr/lib/node_modules/truffle/build/webpack:/~/core-js/library/modules/_export.js:36:1)
    at /usr/lib/node_modules/truffle/build/webpack:/~/babel-runtime/helpers/asyncToGenerator.js:14:1
    at Function.forTx (/usr/lib/node_modules/truffle/build/webpack:/packages/truffle-debugger/dist/debugger.js:2016:6)
    at /usr/lib/node_modules/truffle/build/webpack:/packages/truffle-core/lib/commands/debug.js:69:1
    at <anonymous>
    at process._tickDomainCallback (internal/process/next_tick.js:228:7)

Is there any quick hack I could do to get this to work? Not sure if it's anything to do with my local setup? I thought it could be related to having truffle installed globally and truffle-debugger not. I installed truffle in the package scope with debugger and got the same.

[cgewecke]

Thanks @jleeh - re-opening. As you note - this is also being reported (for Windows) in #998 where the example being used appears to be the Fibonacci number tutorial. gist of their output

For additional context: On my machine if I:

• unbox MetaCoin
• delete the solidity test so that there is only one contract suite
• launch ganache-cli in a separate terminal tab
• truffle test
• pull the transaction hash from the last recorded tx in the ganache-cli output

The debugger launches successfully:

Users-MacBook-Air:metacoin cgewecke$ sudo npm install -g truffle
/usr/local/bin/truffle -> /usr/local/lib/node_modules/truffle/build/cli.bundled.js
+ [email protected]
added 81 packages in 2.857s
Users-MacBook-Air:metacoin cgewecke$ truffle test
Compiling ./contracts/ConvertLib.sol...
Compiling ./contracts/MetaCoin.sol...
Compiling ./contracts/Migrations.sol...


  Contract: MetaCoin
    ✓ should put 10000 MetaCoin in the first account
    ✓ should call a function that depends on a linked library (50ms)
    ✓ should send coin correctly (111ms)


  3 passing (211ms)

Users-MacBook-Air:metacoin cgewecke$ truffle debug 0x4c5f6cfb01d2912f892e1953e846d1aae41a8b955edd776a9ed4ef389d67ecd8
Compiling ./contracts/ConvertLib.sol...
Compiling ./contracts/MetaCoin.sol...
Compiling ./contracts/Migrations.sol...

Gathering transaction data...

Addresses affected:
 0xa0777e0f14e85f2b069929246dc8b793d3039c5c - MetaCoin

Commands:
(enter) last command entered (step next)
(o) step over, (i) step into, (u) step out, (n) step next
(;) step instruction, (p) print instruction, (h) print this help, (q) quit
(b) toggle breakpoint, (c) continue until breakpoint
(+) add watch expression (`+:<expr>`), (-) remove watch expression (-:<expr>)
(?) list existing watch expressions
(v) print variables and values, (:) evaluate expression - see `v`


MetaCoin.sol:

 8: // token, see: https://github.com/ConsenSys/Tokens. Cheers!
 9: 
10: contract MetaCoin {
    ^^^^^^^^^^^^^^^^^^^

debug(development:0x4c5f6cfb...)> 

cc: @gnidan

[RobertoC27]

@cgewecke Fibonacci example was indeed what i tried debugging, did a truffle init on a clean folder, then npm init (because i'm working with truffle@next and copied contract code into a new file. Added a migration file, ran truffle console then compile and finally migrate. Last step was entering the debugger which resulted in #998

[HarryR]

I'm having the same problem on Linux with Truffle v4.1.13, it means that I can't debug any transactions.

I started doing some debugging by editing the cli.bundled.js file directly, in recordSources I output sources, then for each item I output the _ref2 variable (see cli.bundled.js:200413):

It turns out the problem was caused by my std/ERC20.sol interface. When the file is an interface the sources variable ends up with an undefined entry in the list instead of the JSON data for it.

I added something to skip the the undefined item and now debugging works again.

@cgewecke The problem is with interface being used instead of contract - after making the small hack debugging now works. If you use the same hack (skipping undefined items) then that should fix the problem - or - a better fix would be working out why an undefined item ends up in the list as a the result of an interface being used.

e.g. if any source file contains only an interface definition, e.g. contract MyContract is MyInterface {} in one file and interface MyInterface {} in another file, then the MyInterface will be in the list of sources as an undefined.

That doesn't explain why the Fibonacci thing described by @RobertoC27 doesn't work, maybe a different but related problem.

[jleeh]

Just tried that @HarryR and it got further as I saw a debug_traceTransaction, but got a different error:

redux-saga error: uncaught at session.saga
at session.saga
 at recordInstance
 TypeError: Cannot destructure property `context` of 'undefined' or 'null'.
    at Object.addInstance (/mnt/d/dev-gitlab/staking-dapp/node_modules/truffle-debugger/dist/lib/evm/sagas/index.js:35:1)
    at addInstance.next (<anonymous>)
    at recordInstance (/mnt/d/dev-gitlab/staking-dapp/node_modules/truffle-debugger/dist/lib/session/sagas/index.js:121:1)
    at recordInstance.next (<anonymous>)
    at next (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:322:27)
    at currCb (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:399:7)
    at runSelectEffect (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:710:7)
    at runEffect (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:446:761)
    at next (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:326:9)
    at proc (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:281:3)
    at resolveIterator (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:467:5)
    at runCallEffect (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:528:98)
    at runEffect (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:446:402)
    at /mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:655:14
    at Array.forEach (<anonymous>)
    at runAllEffect (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:654:10)
    at runEffect (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:446:249)
    at next (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:326:9)
    at currCb (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:399:7)
    at checkEffectEnd (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:623:9)
    at chCbAtKey (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:638:11)
    at Object.currCb [as cb] (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:399:7)
    at /mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:369:16
    at Array.forEach (<anonymous>)
    at end (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:368:18)
    at Object.task.cont (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:110:11)
    at next (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:332:35)
    at currCb (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:399:7)
    at takeCb (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/proc.js:477:108)
    at Object.put (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/channel.js:85:16)
    at /mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/channel.js:173:10
    at Array.<anonymous> (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/channel.js:194:9)
    at Object.emit (/mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/channel.js:38:13)
    at /mnt/d/dev-gitlab/staking-dapp/node_modules/redux-saga/lib/internal/middleware.js:73:21

I did the same thing as you mentioned and dumped the sources from the debugger, and there was 3 undefined entries at the top. After cross checking what was included and wasn't, it was the bang same as you:

• ERC677.sol
• ERC20.sol
• ERC20Basic.sol

I have interfaces in my own contracts and they're completely fine. I can't see any difference between the token contracts and my own that'd cause anything like this.

[jleeh]

I've fixed my own issue!

Weirdly, the sourcePath being undefined was completely fixed when I moved the ERC contracts into a std folder, deleted build and migrated them again. Proved this as I left the console output of the sources, and the 3 entries I had at the top had gone, with ERC 20, Basic and 677 appearing in the list.

Although like @HarryR said, when I dumped the contexts there were no binaries for any of the Interfaces, including my own.

For it to work after I got the above error, I edited debugger.js at line 4523 and performed a check to see if the binary was empty (0x0). As when it was doing a binary search it was returning nothing. So the addInstance method in my debugger.js now looks like this:

function* addInstance(address, binary) {
  let search = yield (0, _effects.select)(_selectors2.default.info.binaries.search);
  if (binary != "0x0") {
   let { context } = search(binary);

    yield (0, _effects.put)(actions.addInstance(address, context, binary));

    return context;
  }
}

Now:

LinkPool.sol:

 8: import "./interface/NodeFactoryInterface.sol";
 9:
10: contract LinkPool is Ownable {
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

debug(development:0x9bba8f3f...)>

🎉

[gnidan]

@jleeh want to open a PR with that change here: https://github.com/trufflesuite/truffle/blob/develop/packages/truffle-debugger/lib/evm/sagas/index.js#L28?

Thanks for finding that! I'm happy to do the change myself, but figured you should get credit :)

[timothywangdev]

same

[Nufflee]

Same.

[Chippi]

same error in [email protected]. pls fix

[stale[bot]]

Thank you for raising this issue! It has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. If you would like to keep this issue open, please respond with information about the current state of this problem.

[stevenleeg]

Seeing the same issue on 4.1.14. Any updates here?

[stale[bot]]

Thanks for your response! This issue is no longer considered stale and someone from the Truffle team will try to respond as soon as they can.

[hadarbmdev]

Same issue here. Truffle v5.0.0-beta.1 Solidity v0.4.25 Ganache v1.2.2

[trifist]

similar issue here, truffle v5.0.1

[jleeh]

I recently reset my main dev machine and started seeing the same issue with our projects locally installed truffle, although the globally installed truffle was fine.

Project local truffle (seeing debugger issue):

> ./node_modules/.bin/truffle version
Truffle (unbundled) (core: 4.1.15)
Solidity v0.4.24 (solc-js)

Global truffle (worked):

> truffle version
Truffle v4.1.15 (core: 4.1.15)
Solidity v0.4.25 (solc-js)

In our package.json, I then seen we was including specific truffle deps which caused the truffle version to be unbundled:

"truffle": "^4.1.14",
"truffle-contract": "^1.1.8",
"truffle-debug-utils": "^1.0.6",
"truffle-debugger": "^4.0.2",

I changed that to just:

"truffle": "^4.1.15"

Re-ran install then got:

> ./node_modules/.bin/truffle version
Truffle v4.1.15 (core: 4.1.15)
Solidity v0.4.25 (solc-js

Then re-ran ran the debugger and it was all good:

Gathering transaction data...

Addresses affected:
 0x2612af3a521c2df9eaf28422ca335b04adf3ac66 - NodeStaking
 0xdf9fd2e8cf22f173168f320172bbbb29f6d6b011 - PoolStorage
 0xca24282be001a428d27fdac4676561c2eb1de393 - PoolStorage
 0x9b1f7f645351af3631a656421ed2e40f2802e6c0 - PoolOwners
 0xcfeb869f69431e42cdb54a4f4f105c19c080a601 - LinkToken

Commands:
(enter) last command entered (step next)
(o) step over, (i) step into, (u) step out, (n) step next
(;) step instruction, (p) print instruction, (h) print this help, (q) quit
(b) toggle breakpoint, (c) continue until breakpoint
(+) add watch expression (`+:<expr>`), (-) remove watch expression (-:<expr>)
(?) list existing watch expressions
(v) print variables and values, (:) evaluate expression - see `v`


LinkToken.sol:

217: }
218:
219: contract LinkToken is StandardToken, ERC677Token {
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

debug(development:0x10bd84b0...)>

So if you see your truffle version as unbundled, remove any extra truffle deps in your package.json, or any extra deps that are globally installed and that should fix it.

[gnidan]

Looks like this issue specifically is fine on v4.1.15? Closing for issue maintenance. If you run into the specific problem of sourcePath being undefined, let us know and we'll re-open and investigate. Thanks a bunch!