System Error when running Ganache 2.0.0 on darwin

This keeps happening when I want to browse ANY contract in new contract tab. If i leave GUI i can keep working…

PLATFORM: darwin GANACHE VERSION: 2.0.0

EXCEPTION:

TypeError: Cannot read property 'nodes' of undefined
    at getStateVariables (/node_modules/truffle-decoder/dist/allocate/storage.js:146:24)
    at vars.concat.linearizedBaseContractsFromBase.map (/node_modules/truffle-decoder/dist/allocate/storage.js:154:73)
    at Array.map (native)
    at allocateContract (/node_modules/truffle-decoder/dist/allocate/storage.js:154:61)
    at Object.getStorageAllocations (/node_modules/truffle-decoder/dist/allocate/storage.js:28:23)
    at TruffleContractDecoder.init (/node_modules/truffle-decoder/dist/interface/contract-decoder.js:87:43)
    at Object.getDecodedEvent (/src/truffle-integration/decode.js:42:11)
    at process.<anonymous> (/src/truffle-integration/index.js:92:31)
    at emitTwo (events.js:125:13)
    at process.emit (events.js:213:7)
    at emit (internal/child_process.js:768:12)
    at _combinedTickCallback (internal/process/next_tick.js:141:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

APPLICATION LOG:

T+0ms: Starting server (version 2.0.0) with initial configuration: {"gasLimit":6721975,"gasPrice":20000000000,"hardfork":"petersburg","hostname":"127.0.0.1","port":7545,"network_id":5777,"default_balance_ether":1000,"total_accounts":10,"unlocked_accounts":[],"locked":false,"vmErrorsOnRPCResponse":true,"verbose":false,"db_path":"<<<USER_HOME_DIR>>>/Library/Application Support/Ganache/workspaces/solid-robin/chaindata"}
T+1101ms: Ganache started successfully!
T+1101ms: Waiting for requests...
T+1188ms: eth_subscribe
T+1254ms: eth_getLogs
T+1305ms: eth_subscribe
T+1390ms: eth_getCode
T+1493ms: eth_getCode
T+1519ms: eth_getCode
T+1555ms: eth_getCode
T+21847ms: eth_unsubscribe
T+21887ms: eth_unsubscribe
T+21934ms: eth_unsubscribe
T+21934ms: eth_unsubscribe
T+21934ms: eth_unsubscribe

[haltman-at]

OK @davidmurdoch, you are presumably already aware of this, but writing this down here where you can find it again more easily: I just merged this Truffle PR, which causes the decoder to throw a special class of error when this error condition comes up, so that you can catch it rather than crashing. Obviously that’s not a proper fix, but a proper fix is still being worked on; in the meantime, once Truffle 5.0.14 (or rather, truffle-decoder version 3.0.1) is released, if you upgrade your decoder version you’ll be able to catch the error.

Note that Truffle 5.0.13 (or rather, truffle-decoder version 3.0.0) included a breaking change to the decoder, in that init is now async, so you’ll have to change that if you haven’t already. But obviously that’s pretty minor.

[haltman-at]

So, we’re currently looking into the problem, but I wanted to suggest a workaround until such time as we have a fix. Would you mind trying this and letting us know if it works? Try recompling your Truffle project with truffle compile --all, or, if necessary, recompiling and redeploying the whole thing with truffle migrate --compile-all --reset.

See if that fixes the problem for now; let us know if it works. Meanwhile, we are, as I said, looking into a more proper fix. Thank you!