diff --git a/scrapy/crawler.py b/scrapy/crawler.py
index 706c8a59d..a9443f7ac 100644
--- a/scrapy/crawler.py
+++ b/scrapy/crawler.py
@@ -14,7 +14,7 @@ from scrapy.extension import ExtensionManager
 from scrapy.settings import overridden_settings, Settings
 from scrapy.signalmanager import SignalManager
 from scrapy.exceptions import ScrapyDeprecationWarning
-from scrapy.utils.asyncio import install_asyncio_reactor
+from scrapy.utils.asyncio import install_asyncio_reactor, is_asyncio_reactor_installed
 from scrapy.utils.ossignal import install_shutdown_handlers, signal_names
 from scrapy.utils.misc import load_object
 from scrapy.utils.log import (
@@ -259,6 +259,10 @@ class CrawlerProcess(CrawlerRunner):
         super(CrawlerProcess, self).__init__(settings)
         if self.settings.getbool('ASYNCIO_ENABLED'):
             install_asyncio_reactor()
+            if not is_asyncio_reactor_installed():
+                raise Exception("ASYNCIO_ENABLED is on but the Twisted asyncio "
+                                "reactor is not installed, this is not supported.")
+
         install_shutdown_handlers(self._signal_shutdown)
         configure_logging(self.settings, install_root_handler)
         log_scrapy_info(self.settings)
diff --git a/scrapy/utils/log.py b/scrapy/utils/log.py
index 0fe3d1549..6179e1bd1 100644
--- a/scrapy/utils/log.py
+++ b/scrapy/utils/log.py
@@ -11,7 +11,6 @@ from twisted.python import log as twisted_log
 import scrapy
 from scrapy.settings import Settings
 from scrapy.exceptions import ScrapyDeprecationWarning
-from scrapy.utils.asyncio import is_asyncio_reactor_installed
 from scrapy.utils.versions import scrapy_components_versions
 
 
@@ -150,12 +149,7 @@ def log_scrapy_info(settings):
                     for name, version in scrapy_components_versions()
                     if name != "Scrapy")})
     if settings.getbool('ASYNCIO_ENABLED'):
-        if is_asyncio_reactor_installed():
-            logger.debug("Asyncio support enabled")
-        else:
-            logger.error("ASYNCIO_ENABLED is on but the Twisted asyncio "
-                         "reactor is not installed, this is not supported "
-                         "and asyncio coroutines will not work.")
+        logger.debug("Asyncio support enabled")
 
 
 class StreamLogger(object):
diff --git a/tests/test_crawler.py b/tests/test_crawler.py
index 0b2645280..a2865fcd1 100644
--- a/tests/test_crawler.py
+++ b/tests/test_crawler.py
@@ -264,13 +264,14 @@ class CrawlerRunnerHasSpider(unittest.TestCase):
     @defer.inlineCallbacks
     def test_crawler_process_asyncio_enabled_true(self):
         with LogCapture(level=logging.DEBUG) as log:
-            runner = CrawlerProcess(settings={'ASYNCIO_ENABLED': True})
-            yield runner.crawl(NoRequestsSpider)
             if self.reactor_pytest == 'asyncio':
+                runner = CrawlerProcess(settings={'ASYNCIO_ENABLED': True})
+                yield runner.crawl(NoRequestsSpider)
                 self.assertIn("Asyncio support enabled", str(log))
             else:
-                self.assertNotIn("Asyncio support enabled", str(log))
-                self.assertIn("ASYNCIO_ENABLED is on but the Twisted asyncio reactor is not installed", str(log))
+                msg = "ASYNCIO_ENABLED is on but the Twisted asyncio reactor is not installed"
+                with self.assertRaisesRegex(Exception, msg):
+                    runner = CrawlerProcess(settings={'ASYNCIO_ENABLED': True})
 
     @defer.inlineCallbacks
     def test_crawler_process_asyncio_enabled_false(self):