Revisions to Can't place a custom block

Rollback to Revision 1

edited Mar 7, 2022 at 12:47

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The code shown in the question is using the following line.

namespace Drupal\Core\Block\BlockBase;

That is wrong as that isn't a namespace a third-party module should use. It's the full, complete of namespace, name ofFix the BlockBase class implemented by Drupal core.namespaces:

Instead of that, use the following two lines.delete: namespace Drupal\Core\Block\BlockBase;

namespace Drupal\iai_tour\Plugin\Block; use Drupal\Core\Block\BlockBase;

If iai_tour isn't the module machine name, replace it with the correct module machine name. That essentially is the name of the .module name without extension.add: namespace Drupal\MY_COOL_MODULE\Plugin\Block; use Drupal\Core\Block\BlockBase;

The code shown in the question is using the following line.

namespace Drupal\Core\Block\BlockBase;

That is wrong as that isn't a namespace a third-party module should use. It's the full, complete of namespace, name of the BlockBase class implemented by Drupal core.

Instead of that, use the following two lines.

namespace Drupal\iai_tour\Plugin\Block; use Drupal\Core\Block\BlockBase;

If iai_tour isn't the module machine name, replace it with the correct module machine name. That essentially is the name of the .module name without extension.

Fix the namespaces:

delete: namespace Drupal\Core\Block\BlockBase;

add: namespace Drupal\MY_COOL_MODULE\Plugin\Block; use Drupal\Core\Block\BlockBase;

made the answer more explicit

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edited Mar 7, 2022 at 12:43

avpaderno ♦

98.1k
15
165
284

FixThe code shown in the namespaces:question is using the following line.

namespace Drupal\Core\Block\BlockBase;

delete: namespace Drupal\Core\Block\BlockBase;That is wrong as that isn't a namespace a third-party module should use. It's the full, complete of namespace, name of the BlockBase class implemented by Drupal core.

add: namespace Drupal\MY_COOL_MODULE\Plugin\Block; use Drupal\Core\Block\BlockBase;Instead of that, use the following two lines.

namespace Drupal\iai_tour\Plugin\Block; use Drupal\Core\Block\BlockBase;

If iai_tour isn't the module machine name, replace it with the correct module machine name. That essentially is the name of the .module name without extension.

Fix the namespaces:

delete: namespace Drupal\Core\Block\BlockBase;

add: namespace Drupal\MY_COOL_MODULE\Plugin\Block; use Drupal\Core\Block\BlockBase;

The code shown in the question is using the following line.

namespace Drupal\Core\Block\BlockBase;

That is wrong as that isn't a namespace a third-party module should use. It's the full, complete of namespace, name of the BlockBase class implemented by Drupal core.

Instead of that, use the following two lines.

namespace Drupal\iai_tour\Plugin\Block; use Drupal\Core\Block\BlockBase;

If iai_tour isn't the module machine name, replace it with the correct module machine name. That essentially is the name of the .module name without extension.