Meteor 1.12.1 Assertion `args[1]->IsString()' failed

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#1

Having updated an old application I’m maintaining to Meteor 1.12.1 I get the following on meteor run:

/Users/knirirr/.meteor/packages/meteor-tool/.1.12.1.mwgklm.brmz9++os.osx.x86_64+web.browser+web.browser.legacy+web.cordova/mt-os.osx.x86_64/dev_bundle/bin/node[37681]: ../src/node_contextify.cc:655:static void node::contextify::ContextifyScript::New(const FunctionCallbackInfo<v8::Value> &): Assertion `args[1]->IsString()' failed.

Nothing useful has come up from Google and the usual first resort of rm -rf node_modules && npm install has had no effect. My Node version is 12.20.1.
Does anyone have any suggestions on how to proceed with this?

#2

try to erase the app local build under .meteor/local.

Is it in development, production, or both ?

#3

Thanks for the reply.
This is only in development - I’ve not got as far as production yet; I was hoping to update it before dealing with a user’s bug report.
Removing .meteor/local/build hasn’t fixed it, I’m afraid.

#4

from this thread https://github.com/nodejs/node/issues/20325 it seems that it comes from node js.
What os are you on ? do you use a node version manager such as nvm ? check if you have multiple nodejs versions installed on your OS (since it’s related to a node v10 bug).

#5

I had wondered about that one, but I have the node version mentioned above in my PATH, and meteor node gives me: “Welcome to Node.js v12.20.1.” So, I can only assume that it’s not related to the Node 10 bug.
The only other version I appear to have installed (using macOS 10.15.7 & Homebrew) is 15.5.0.

#6

try to remove all node versions. Install nvm and re-install 12.20.1 with it.
Did you also removed the bundle cache from .meteor/local ?

#7

Now running /usr/local/Cellar/nvm/0.37.2/versions/node/v12.20.1/bin/node - still the same problem, I’m afraid.

It’s definitely 12.20.1 that seems to be run, e.g.

$ /Users/knirirr/.meteor/packages/meteor-tool/.1.12.1.mwgklm.brmz9++os.osx.x86_64+web.browser+web.browser.legacy+web.cordova/mt-os.osx.x86_64/dev_bundle/bin/node --version
v12.20.1