CasperJS Binary Not Found

[rbonvall]

I'm trying to use grunt-casper in a project. I installed it the common way: npm install grunt-casper --save-dev.

I have the following configuration in my Gruntfile.coffee:

casper:
  functional:
    options:
      test: true
    files:
      'f.xml': ['.../tests']

When I run grunt functional, I get the following output:

Running "casper:functional" (casper) task
>> CasperJS Binary Not Found, try `npm install`
Casper Task 'casper:functional' took ~1ms to run
Warning: Task "casper:functional" failed. Use --force to continue.

Aborted due to warnings.

I added a line manually in tasks/lib/casper.js to print path.resolve(casperBin), and the path I got is just wrong. It prints:

$PROJECT_ROOT/node_modules/.bin/casperjs

while the binary can be found in the following paths:

> find $PROJECT_ROOT -name casperjs -type f -follow
$PROJECT_ROOT/node_modules/grunt-casper/node_modules/.bin/casperjs
$PROJECT_ROOT/node_modules/grunt-casper/node_modules/casperjs
$PROJECT_ROOT/node_modules/grunt-casper/node_modules/casperjs/rubybin/casperjs

The binary is searched in a path relative to the project root. It works when the project is grunt-casper, but not when the latter is just a dependency for another project.

Is this like this by design? Was it working correctly for all of you?

[iamchrismiller]

Try version 0.3.1. This should be resolved. I still had a global version sitting around, removed that and was able to reproduce. Fixed in 0.3.1 exported casperjs bin at the top level

[rbonvall]

I upgraded from 0.3.0 to 0.3.1 and it worked. Thanks!

[timjacobi]

If casperjs is already installed locally the installation of this package will not pull casperjs into the packages node_modules folder so you'll still get the error.

[abeadam]

@timjacobi I hit that same issue, fixed by checking for installed casper in the outer node_modules if it's not inside grunt-casper https://github.com/iamchrismiller/grunt-casper/blob/master/tasks/lib/casper.js#L63 changed to

        if (!fs.existsSync(casperBin)) {
              //swap to the location outside and check if it's installed locally there
              localModulesPath = path.resolve(__dirname, '../../..');
              casperBin = localModulesPath + casperBinaryPath;
              if (!fs.existsSync(casperBin)) {
                              grunt.log.error("CasperJS Binary Not Found, try `npm install`");
                              return next(true);
              }
        }

[timjacobi]

How about a pull request? :)

[ebourmalo]

I encountered the same issue with last version (0.3.8).

Here is the pull request to fix it @iamchrismiller : https://github.com/iamchrismiller/grunt-casper/pull/44

It just try to find the casperjs bin in the project local modules if not found locally in grunt-casper. Thanks to @abeadam for the fix :)