Tools: polymer lint gives error as '[object Object]'

[davidmaxwaterman]

Description

Polymer lint reports an error as simply [object Object]

Versions & Environment

• Polymer CLI: 1.0.2
• node: v7.8.0
• Operating System: WSL

Steps to Reproduce

Not sure, since it is an error in my app, and the error message is unintelligible.

Expected Results

Useful error message.

Actual Results

maxw@maxw-master$ polymer lint --verbose

 debug:   got args:
{ args: [ 'lint', '--verbose' ] }
debug:   got default config from polymer.json file:
{ config:
   { entrypoint: 'index.html',
     shell: 'src/ant-app.html',
     fragments: [ 'src/ant-config.html', 'src/ant-app.html' ],
     sources: [ 'src/**/*', 'images/**/*', 'bower.json' ],
     extraDependencies:
      [ 'manifest.json',
        'bower_components/webcomponentsjs/webcomponents-lite.min.js',
        'node_modules/redux/dist/redux.min.js' ],
     lint: { rules: [ 'polymer-1' ] } } }
debug:   adding command analyze
debug:   adding command build
debug:   adding command help
debug:   adding command init
debug:   adding command install
debug:   adding command lint
debug:   adding command serve
debug:   adding command test
debug:   running...
debug:   command 'lint' found, parsing command args:
{ args: [ '--verbose' ] }
debug:   command options parsed from args:
{ verbose: true }
debug:   final project configuration generated:
{ lint: { rules: [ 'polymer-1' ] },
  root: '/mnt/c/Users/David/Development/z/antenna/maxw-master',
  entrypoint: '/mnt/c/Users/David/Development/z/antenna/maxw-master/index.html',
  shell: '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-app.html',
  fragments:
   [ '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-config.html',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-app.html' ],
  extraDependencies:
   [ '/mnt/c/Users/David/Development/z/antenna/maxw-master/manifest.json',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/bower_components/webcomponentsjs/webcomponents-lite.min.js',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/node_modules/redux/dist/redux.min.js',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/bower_components/webcomponentsjs/*.js' ],
  sources:
   [ '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/**/*',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/images/**/*',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/bower.json',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/index.html',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-app.html',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-config.html',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-app.html' ],
  allFragments:
   [ '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-app.html',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-config.html',
     '/mnt/c/Users/David/Development/z/antenna/maxw-master/src/ant-app.html' ] }
debug:   Running command...


[object Object]

    
    ~~~~~~~~~~~~

index.html(172,4) warning [undefined-elements] - The element ant-config is not defined


    
    ~~~~~~~~~

index.html(173,4) warning [undefined-elements] - The element ant-app is not defined


Found  1 errors 2 warnings.
maxw@maxw-master$

[FredKSchott]

@davidmaxwaterman really appreciate the cleanly formatted OP :)

@rictic any idea what this could be? I don't see any data missing from the output, It might just be a stray console.log that made it into the command.

[davidmaxwaterman]

If there are any debugging steps you can suggest, I'm up for it. Unfortunately, I can't share my app.

I presumed that the [object Object] is what the error is in Found 1 errors 2 warnings - the 2 warnings are accounted for (custom elements in my index.html that I lazy load [it'd be nice to be able to 'comment those away' somehow]).

[FredKSchott]

@davidmaxwaterman oh yea you're right, I counted those wrong.

[ronnyroeller]

I'm seeing the same issue:

$ polymer lint


[object Object]

[object Object]

Found  2 errors.

[fabysdev]

If I am adding the files as input to the lint command it works.

root@49aaf5821862:/var/www# polymer lint -i $(find src/ -not -type d)
root@49aaf5821862:/var/www# echo $?
0
root@49aaf5821862:/var/www#

But if you don't skip the directories you get the error.

root@49aaf5821862:/var/www# polymer lint -i $(find src/)


[object Object]

[object Object]

Found  2 errors.

[daniel-vlad]

We've run into the same issue yesterday. Running polymer lint just returns

[object Object]

[object Object]

Found  2 errors.

Any news on this?

[stramel]

Maybe related? https://github.com/Polymer/polymer-linter/issues/87

[daniele-orlando]

Same here.

[ratracegrad]

We are getting the [object objct] when we run polymer lint too.

[patkub]

Getting this error when running polymer lint on a directory, or using globs. Here is my repo: https://github.com/patkub/rmc1891-site/

polymer lint --input src/

[object Object]
Found 1 errors.

The only html file present in src/ is rmc-shell.html. Linting that file explicitly works without any errors.
polymer lint --input src/rmc-shell.html.

But, using globs results in the same error message.

polymer lint --input src/*.html

[object Object]
Found 1 errors.

[Ravikumar-Dhanasekaran]

same error..

[object Object]

[object Object]

[object Object]

Found 3 errors.

[garcianavalon]

Same here

[object Object]

[object Object]

[object Object]

[object Object]

[object Object]

Found  5 errors.

[eiriktorheim]

Same here
[object Object]

[web-padawan]

@rictic I wonder if this could be introduced in warning-printer refactoring here?

[jukbot]

same issue here too :(

but when I try
polymer lint --input src/*.html

or this if you have a subfolder

polymer lint --input src/**/*.html

it works without any errors

maybe the polymer lint is including the object content from some JSON file.
This error also affects my automatic CI test result.

[FaahdNoor]

+1

[justinfagnani]

@rictic can you check this out?

[ghost]

In my case, this was happening due to my bower.json having an extraneous comma in its dependencies object, thereby causing it to be invalid JSON. Fixing my bower.json got rid of the [Object object] error.

[hammenm]

Update from the present. I had the issue when using iron-ajax which parsed an erroneous json file. My theory is that polymer lint does not like at all to read a wrong json file (for example with extra commas, etc...)

I fixed my json files and everything worked right

[JaySunSyn]

In my case, there were comments in my firestore.indexes.json file. Removing the comments, made the json file valid.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[davidmaxwaterman]

.