Display environment errors in project form

templates/components/alert.html

@@ -31,6 +31,10 @@
         <div class='alert__message'>{{ message | safe }}</div>
       {% endif %}
 
+      {% if caller %}
+        <div class='alert__message'>{{ caller() }}</div>
+      {% endif %}
+
       {% if fragment %}
         <div class='alert__message'>
           {% include fragment %}

templates/workspace_project_new.html

@@ -54,7 +54,11 @@
     </div>
 
     {% if form.environment_names.errors %}
-      {{ Alert("Missing Environments", message="Provide at least one environment name.", level="error") }}
+      {% call Alert("Missing Environments", level="error") %}
+        {% for error in form.environment_names.errors %}
+          <p>{{ error }}</p>
+        {% endfor %}
+      {% endcall %}
     {% endif %}
 
       <div class="block-list project-list-item">