Error message

  • Warning: Undefined array key "theme" in Drupal\views\Plugin\views\PluginBase->themeFunctions() (line 302 of core/modules/views/src/Plugin/views/PluginBase.php).
  • Deprecated function: strrpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\Theme\ThemeManager->render() (line 164 of core/lib/Drupal/Core/Theme/ThemeManager.php).
Prokopy, L., Gramig, B., Bower, A., Church, S., Ellison, B., Gassman, P., Genskow, K., Gucker, D., Hallett, S., Hill, J., Hunt, N., Johnson, K., Kaplan, I., Kelleher, P., Kok, H., Komp, M., Lammers, P., LaRose, S., Liebman, M., Margenot, A., Mulla, D., O’Donnell, M., Peimer, A., Reaves, E., Salazar, K., Schelly, C., Schilling, K., Secchi, S., Spaulding, A., Swenson, D., Thompson, A., & Ulrich-Schad, J. The urgency of transforming the Midwestern U.S. landscape into more than corn and soybean. 37 3 537 - 539. 10.1007/s10460-020-10077-x.