"polymer-cli": "^1.7.7",
getting the below error on Opera 54 with es5-bundled.
esm-bundled works fine.

I'm having the same issue, any update on this?
@swapkats it looks like bable minify issue https://github.com/babel/minify/issues/850, which fails in es5 bundle causes this.
Until the fix is available, disabling minify fixes the issue
{
"name": "es5-bundled",
"js": {
"compile": "es5",
"minify": false,
"transformModulesToAmd": true
},
"css": {
"minify": true
},
"html": {
"minify": true
},
"bundle": true,
"addServiceWorker": true
}
@ranjeet-choudhary thanks for pointing out. I'm using esm-bundled as you said till it's fixed, seems to work fine.
hey any updates on this issue
it is working with minify option false
but that is not good for performance
Doesn't work for me, even with minify false. I still get this error
Same here, what is a workaround? import.meta shouldn't even be in a ES5 compliant bundle
you are all missing a package. just reinstall.
I was not missing anything. I followed @ranjeet-choudhary instructions above and got it working.
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Most helpful comment
Doesn't work for me, even with minify false. I still get this error