Hi !
I installed the module using composer, Found two folders modules/contrib/barcode and modules/contrib/barcodes
I enabled the modules from the admin ui, (couldn't install Drush on my sharedhosting)
When i try to add a Matrix barcode field to my content type i have this error :
Notice: Undefined variable: types in Drupal\barcode\Plugin\Field\FieldType\MatrixBarcodeItem::standardBarcodes() (line 50 of modules/contrib/barcode/src/Plugin/Field/FieldType/MatrixBarcodeItem.php).
Warning: Invalid argument supplied for foreach() in Drupal\barcode\Plugin\Field\FieldType\MatrixBarcodeItem::standardBarcodes() (line 50 of modules/contrib/barcode/src/Plugin/Field/FieldType/MatrixBarcodeItem.php).
Notice: Undefined variable: lines in Drupal\barcode\Plugin\Field\FieldType\BarcodeBase->getTypesString() (line 150 of modules/contrib/barcode/src/Plugin/Field/FieldType/BarcodeBase.php).
Warning: implode(): Invalid arguments passed in Drupal\barcode\Plugin\Field\FieldType\BarcodeBase->getTypesString() (line 150 of modules/contrib/barcode/src/Plugin/Field/FieldType/BarcodeBase.php).
In the screenshot attached to this issue you can see that the allowed barcodes type is empty too

Any help or idea how to fix that is more than welcome !
Comments
Comment #2
sanduhrsWrong project, reassigning.
Comment #3
tr commentedWhen you assign the issue to yourself that means you are going to work on it. I take it that's not the case, so unassigning.
Comment #4
tr commentedThis module is no longer supported and there will be no new development on the Drupal 8 branch. I suggest you try using the Barcodes module instead (https://www.drupal.org/project/barcodes)
Barcodes is very similar to this module, and is supported for Drupal 7, 8, and 9.