Getting an error when trying to run grunt build

[Mayank Pandey]

Hello!

I was recently trying to use grunt build task but I get the following error:

Fatal error: Perennial task failed:

Error: git rev-parse HEAD in ../acceleration-lab failed with exit code 128 and stdout:

  at ChildProcess.<anonymous> (/Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/execute.js:77:17)

  at ChildProcess.emit (events.js:315:20)

  at maybeClose (internal/child_process.js:1048:16)

  at Socket.<anonymous> (internal/child_process.js:439:11)

  at Socket.emit (events.js:315:20)

  at Pipe.<anonymous> (net.js:673:12)

Full Error details:

Error: git rev-parse HEAD in ../acceleration-lab failed with exit code 128 and stdout:

HEAD

what am I doing wrong?

Thank you for your time!

Regards,

Mayank Pandey.

[Chris Malley]

Hi Mayank,

I'm seeing the same problem.  

I have opened a high-priority bug report, see https://github.com/phetsims/chipper/issues/1011.

Someone will reply here when the problem is fixed.

Sorry for the inconvenience.

Chris Malley

PixelZoom, Inc.

[Jonathan Olson]

Hello!

I believe I've fixed this with https://github.com/phetsims/chipper/commit/24c2f7ab261cf46e19dfda8abed580ce40cdf0e0. Can you go to the chipper repo, `git pull`, and try again?

Sorry about the problem!

-Jonathan Olson

[Mayank Pandey]

Hello!

I appreciate the help but now I am facing a new error, I hate you disturb you guys but what is wrong here?

Running "build" task

Building runnable repository (Numerical-Differentiation, brands: adapted-from-phet)

Building brand: adapted-from-phet

>> Webpack build complete: 4529ms

Did not find git information for Numerical-Differentiation

>> WARNING404: Skipping potentially non-public dependency phet-io

>> WARNING404: Skipping potentially non-public dependency phet-io-client-guides

>> WARNING404: Skipping potentially non-public dependency phet-io-wrappers

>> WARNING404: Skipping potentially non-public dependency studio

Fatal error: Perennial task failed:

AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Missing string information for numerical-differentiation custom

  at /Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/getStringMap.js:213:9

  at Array.forEach (<anonymous>:null:null)

  at /Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/getStringMap.js:202:15

  at Array.forEach (<anonymous>:null:null)

  at /Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/getStringMap.js:201:23

  at Array.forEach (<anonymous>:null:null)

  at module.exports (/Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/getStringMap.js:153:24)

  at module.exports (/Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/buildRunnable.js:132:21)

  at /Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/Gruntfile.js:254:11

  at wrap (/Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/Gruntfile.js:73:7)

Full Error details:

AssertionError [ERR_ASSERTION]: Missing string information for numerical-differentiation custom

[cmalley]

You can ignore this, it just means that your repository is not checked into GitHub, but the build should still work:

> Did not find git information for Numerical-Differentiation

You can ignore these warnings. They are for building dependencies related to PhET's commerical product called "PhET-iO".  The build should still succeed.

>> WARNING404: Skipping potentially non-public dependency phet-io

>> WARNING404: Skipping potentially non-public dependency phet-io-client-guides

>> WARNING404: Skipping potentially non-public dependency phet-io-wrappers

>> WARNING404: Skipping potentially non-public dependency studio

This is where the problem appears to be:

> Fatal error: Perennial task failed:

> AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Missing string information for numerical-differentiation custom

I know it's not obvious from the error message, but this means that it's looking for a translated string with key "custom" in string string file numerical-differentiation_en.json.   

I suspect that you named your repo Numerical-Differentiation (uppercase), in which case the string file should be Numerical-Differentiation_en.json.  The error message is for some reason incorrect, and refers to numerical-differentiation (lowercase). I'll create a bug report to fix that.  In any case, I highly recommend that you use lowercase for your repository name.

So...  The problem is likely that you have added a new translated string to your JavaScript code, something like  NumericalDifferentiationStrings.custom.  If so, you need to add an entry for that string in Numerical-Differentiation_en.json, something like this:

"custom": {
"value": "Custom" 
}

Let me know if this resolves the problem.

Chris Malley

PixelZoom, Inc.

[Mayank Pandey]

Hello!

Thank you for the reply, I was able to fix that problem with your help but now a new problem has come through. I am so sorry I am new to this and it's hard to debug this

Running "build" task

Building runnable repository (Numerical-Differentiation, brands: adapted-from-phet)

Building brand: adapted-from-phet

>> Webpack build complete: 4888ms

Did not find git information for Numerical-Differentiation

>> WARNING404: Skipping potentially non-public dependency phet-io

>> WARNING404: Skipping potentially non-public dependency phet-io-client-guides

>> WARNING404: Skipping potentially non-public dependency phet-io-wrappers

>> WARNING404: Skipping potentially non-public dependency studio

>> Unused string: key=NUMERICAL_DIFFERENTIATION/Numerical-Differentiation.title, value=numerical

>> Unused string: key=Numerical-Differentiation.title, value=numerical

Fatal error: Perennial task failed:

AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: missing entry for sim title, key = NUMERICAL_DIFFERENTIATION/Numerical-Differentiation.title

  at module.exports (/Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/buildRunnable.js:146:3)

  at /Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/Gruntfile.js:254:11

  at wrap (/Users/mayankpandey/Desktop/phetsims/chipper/js/grunt/Gruntfile.js:73:7)

Full Error details:

AssertionError [ERR_ASSERTION]: missing entry for sim title, key = NUMERICAL_DIFFERENTIATION/Numerical-Differentiation.title

This is the error I get now and as you can see in these lines

>> Unused string: key=NUMERICAL_DIFFERENTIATION/Numerical-Differentiation.title, value=numerical

>> Unused string: key=Numerical-Differentiation.title, value=numerical

I tried giving it the key and value but it's still not working

[Mayank Pandey]

Can anyone help me with this?

[cmalley]

It's another case of the same problem that you had previously. As the error message says, you are missing a translated string: 

> key = NUMERICAL_DIFFERENTIATION/Numerical-Differentiation.title

Add this to Numerical-Differentiation-strings_en.json, the English translatable strings:

"Numerical-Differentiation.title": {
"value": "Numerical Differentiation" 
}

Any translated string that you add to .js code needs to be added to this file.

Chris Malley

PixelZoom, Inc.

[Mayank Pandey]

Hello!

Thank you for replying but that did not fix the issue, is there something else I can do?

I also noticed that the earlier error message and this one are different:

Old error:

> Fatal error: Perennial task failed:

> AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Missing string information for numerical-differentiation custom

New Error:

Full Error details:

AssertionError [ERR_ASSERTION]: missing entry for sim title, key = NUMERICAL_DIFFERENTIATION/Numerical-Differentiation.title

[cmalley]

The error message is different because the missing string is needed by part of PhET simulation framework that is responsible for the simulation's title.  All simulations are required to have a title.  And that should have been handled automatically if you used 'grunt create-sim' to create your Numerical-Differentiation simulation.

In order to debug, please provide the following information:

(1) How did you create Numerical-Differentiation? Did you use 'grunt create-sim', as specified in the "PhET Development Overview"?    If you used 'grunt create-sim', please provide the complete command that you used.

(2) Please provide Numerical-Differentiation/js/Numerical-Differentiation-main.js

(3) Please provide Numerical-Differentiation/Numerical-Differentiation-strings.json

Chris Malley

PixelZoom, Inc.

[cmalley]

I tested things myself, and I see no problems.  My guess is that you are either not using grunt create-sim, or you edited (and broke) something related to the title string.

(1) I created  the sim using this command:

% cd perennial

% grunt create-sim --repo=Numerical-Differentiation --author="CM"

Then I immedidate tested it, and it builds fine:

% cd ../Numerical-Differentiation

% grunt build --brands=adapted-from-phet

Running "build" task

Building runnable repository (Numerical-Differentiation, brands: adapted-from-phet)

Building brand: adapted-from-phet

>> Webpack build complete: 1706ms

Did not find git information for Numerical-Differentiation

>> Production minification complete: 11508ms (1231033 bytes)

>> Debug minification complete: 0ms (4959446 bytes)

Done.

%

(2) Numerical-Differentiation-main.js is generated with code to access the title string. This is the relevant line:

const numericalDifferentiationTitleString = numericalDifferentiationStrings[ 'Numerical-Differentiation' ].title;

(3) Numerical-Differentiation-strings_en.json is generated a default title string. This is the complete contents of the file:

{

  "Numerical-Differentiation.title": {

    "value": "Numerical Differentiation"

  }

}

Chris Malley

PixelZoom, Inc.

[Mayank Pandey]

Hello!

Apparently I am an idiot haha, so were completely right, the issue was in the Numerical-Differentiation-main.js. I was not referencing the correct string from Numerical-Differentiation-strings.json. I probably broke something while making some changes to the credits, my bad. I really appreciate the help!

Thank you for your time!