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Cannot read property 'hexData' of undefined

See original GitHub issue

Problem encountered on my.comma.ai. To reproduce the problem just click on any message and then try to select any message portion in message details area.

Just to add, after this error the page goes blank so it is a critical error as cabana is is not usable anymore.

console.js:39 TypeError: Cannot read property 'hexData' of undefined
    at MessageBytes.shouldComponentUpdate (MessageBytes.js:31)
    at gg (react-dom.production.min.js:2869)
    at Lh (react-dom.production.min.js:3870)
    at mj (react-dom.production.min.js:6116)
    at jj (react-dom.production.min.js:5101)
    at Z (react-dom.production.min.js:4958)
    at $i (react-dom.production.min.js:4817)
    at react-dom.production.min.js:2543
    at n.unstable_runWithPriority (scheduler.production.min.js:338)
    at vf (react-dom.production.min.js:2513)
    at yf (react-dom.production.min.js:2538)
    at O (react-dom.production.min.js:2528)
    at eg (react-dom.production.min.js:4773)
    at Object.enqueueSetState (react-dom.production.min.js:2840)
    at CanExplorer.D.setState (react.production.min.js:60)
    at CanExplorer._callee3$ (CanExplorer.js:763)
    at tryCatch (runtime.js:45)
    at Generator.invoke [as _invoke] (runtime.js:264)
    at Generator.forEach.e.<computed> [as next] (runtime.js:98)
    at asyncGeneratorStep (asyncToGenerator.js:3)
    at _next (asyncToGenerator.js:25)
e.<computed> @ console.js:39
di @ react-dom.production.min.js:4260
r.callback @ react-dom.production.min.js:4659
Zf @ react-dom.production.min.js:2808
Yf @ react-dom.production.min.js:2796
nj @ react-dom.production.min.js:5821
n.unstable_runWithPriority @ scheduler.production.min.js:338
vf @ react-dom.production.min.js:2513
ij @ react-dom.production.min.js:5547
$i @ react-dom.production.min.js:4817
(anonymous) @ react-dom.production.min.js:2543
n.unstable_runWithPriority @ scheduler.production.min.js:338
vf @ react-dom.production.min.js:2513
yf @ react-dom.production.min.js:2538
O @ react-dom.production.min.js:2528
eg @ react-dom.production.min.js:4773
enqueueSetState @ react-dom.production.min.js:2840
D.setState @ react.production.min.js:60
_callee3$ @ CanExplorer.js:763
tryCatch @ runtime.js:45
invoke @ runtime.js:264
forEach.e.<computed> @ runtime.js:98
asyncGeneratorStep @ asyncToGenerator.js:3
_next @ asyncToGenerator.js:25
Promise.then (async)
asyncGeneratorStep @ asyncToGenerator.js:13
_next @ asyncToGenerator.js:25
(anonymous) @ asyncToGenerator.js:32
(anonymous) @ asyncToGenerator.js:21
loadMessagesFromCache @ main.2c9f4575.chunk.js:1
persistDbc @ CanExplorer.js:970
onConfirmedSignalChange @ CanExplorer.js:977
propagateUpSignalChange @ AddSignals.js:520
onBitMouseUp @ AddSignals.js:367
ka @ react-dom.production.min.js:81
qa @ react-dom.production.min.js:101
ra @ react-dom.production.min.js:105
wa @ react-dom.production.min.js:125
Aa @ react-dom.production.min.js:154
ya @ react-dom.production.min.js:143
Ba @ react-dom.production.min.js:167
Pd @ react-dom.production.min.js:1749
Ud @ react-dom.production.min.js:1813
n.unstable_runWithPriority @ scheduler.production.min.js:338
vf @ react-dom.production.min.js:2513
fj @ react-dom.production.min.js:4863
Sd @ react-dom.production.min.js:1783
wrapped @ raven.js:363
asyncToGenerator.js:6 Uncaught (in promise) TypeError: Cannot read property 'hexData' of undefined
    at MessageBytes.shouldComponentUpdate (MessageBytes.js:31)
    at gg (react-dom.production.min.js:2869)
    at Lh (react-dom.production.min.js:3870)
    at mj (react-dom.production.min.js:6116)
    at jj (react-dom.production.min.js:5101)
    at Z (react-dom.production.min.js:4958)
    at $i (react-dom.production.min.js:4817)
    at react-dom.production.min.js:2543
    at n.unstable_runWithPriority (scheduler.production.min.js:338)
    at vf (react-dom.production.min.js:2513)
    at yf (react-dom.production.min.js:2538)
    at O (react-dom.production.min.js:2528)
    at eg (react-dom.production.min.js:4773)
    at Object.enqueueSetState (react-dom.production.min.js:2840)
    at CanExplorer.D.setState (react.production.min.js:60)
    at CanExplorer._callee3$ (CanExplorer.js:763)
    at tryCatch (runtime.js:45)
    at Generator.invoke [as _invoke] (runtime.js:264)
    at Generator.forEach.e.<computed> [as next] (runtime.js:98)
    at asyncGeneratorStep (asyncToGenerator.js:3)
    at _next (asyncToGenerator.js:25)
shouldComponentUpdate @ MessageBytes.js:31
gg @ react-dom.production.min.js:2869
Lh @ react-dom.production.min.js:3870
mj @ react-dom.production.min.js:6116
jj @ react-dom.production.min.js:5101
Z @ react-dom.production.min.js:4958
$i @ react-dom.production.min.js:4817
(anonymous) @ react-dom.production.min.js:2543
n.unstable_runWithPriority @ scheduler.production.min.js:338
vf @ react-dom.production.min.js:2513
yf @ react-dom.production.min.js:2538
O @ react-dom.production.min.js:2528
eg @ react-dom.production.min.js:4773
enqueueSetState @ react-dom.production.min.js:2840
D.setState @ react.production.min.js:60
_callee3$ @ CanExplorer.js:763
tryCatch @ runtime.js:45
invoke @ runtime.js:264
forEach.e.<computed> @ runtime.js:98
asyncGeneratorStep @ asyncToGenerator.js:3
_next @ asyncToGenerator.js:25
Promise.then (async)
asyncGeneratorStep @ asyncToGenerator.js:13
_next @ asyncToGenerator.js:25
(anonymous) @ asyncToGenerator.js:32
(anonymous) @ asyncToGenerator.js:21
loadMessagesFromCache @ main.2c9f4575.chunk.js:1
persistDbc @ CanExplorer.js:970
onConfirmedSignalChange @ CanExplorer.js:977
propagateUpSignalChange @ AddSignals.js:520
onBitMouseUp @ AddSignals.js:367
ka @ react-dom.production.min.js:81
qa @ react-dom.production.min.js:101
ra @ react-dom.production.min.js:105
wa @ react-dom.production.min.js:125
Aa @ react-dom.production.min.js:154
ya @ react-dom.production.min.js:143
Ba @ react-dom.production.min.js:167
Pd @ react-dom.production.min.js:1749
Ud @ react-dom.production.min.js:1813
n.unstable_runWithPriority @ scheduler.production.min.js:338
vf @ react-dom.production.min.js:2513
fj @ react-dom.production.min.js:4863
Sd @ react-dom.production.min.js:1783
wrapped @ raven.js:363

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Reactions:3
  • Comments:5

github_iconTop GitHub Comments

1reaction
kiansheikcommented, Aug 18, 2020

I created a fix, but I am not sure how reliable it is. I will test it and make a PR if it works.

1reaction
kiansheikcommented, Aug 18, 2020

I am having this same exact error. I just bought a white panda and I cannot start the process of reverse engineering my car’s CAN messages at the moment with this issue.

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