A non-numeric value encountered

[winkersco]

Prerequisites

• [x] I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• [x] The issue still exists against the latest master branch of yii2-mpdf.
• [x] This is not an usage question. I confirm having gone through and read the documentation.
• [x] This is not a general programming / coding question. (Those should be directed to the webtips Q & A forum).
• [x] I have attempted to find the simplest possible steps to reproduce the issue.
• [] I have included a failing test as a pull request (Optional).

Steps to reproduce the issue

1. I write this code in controller:

public function actionTest($id) { $model = $this->findModel($id); $content = $this->renderPartial('view', [ 'model' => $model, ]); $pdf = new Pdf([ 'mode' => Pdf::MODE_UTF8, 'content' => $content, ]); return $pdf->render(); }

2. and then send request to this action.

## Expected behavior and actual behavior

When I follow those steps, I see that a `yii\base\ErrorException` occurs.

![image](https://user-images.githubusercontent.com/24722498/43601022-765a8582-96a1-11e8-9c8d-a925ebc12139.png)

I was expecting to render a PDF from view.

## Environment

Apache/2.4.26 (Unix) OpenSSL/1.0.2l PHP/7.1.7 mod_perl/2.0.8-dev Perl/v5.16.3
Yii Framework/2.0.15.1

#### Browsers

- [x] Google Chrome
- [x] Mozilla Firefox
- [] Internet Explorer
- [] Safari

#### Operating System

- [x] Windows
- [ ] Mac OS X
- [x] Linux
- [ ] Mobile

#### Libraries

- jQuery version:
- yii2-mpdf version:

## Isolating the problem

- [ ] This bug happens [on the demos page](https://demos.krajee.com/mpdf)
- [ ] The bug happens consistently across all tested browsers
- [ ] This bug happens when using yii2-mpdf without other plugins.

[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.

[ricar2ce]

Hello @winkersco , greetings, did you find the solution for this problem? I am in the same situation