diff --git a/sky/tools/shelldb b/sky/tools/shelldb
index e6c9395773c..6283a8c8616 100755
--- a/sky/tools/shelldb
+++ b/sky/tools/shelldb
@@ -408,7 +408,6 @@ class Analyze(object):
         analyzer_path = os.path.join(SRC_ROOT, 'sky/tools/skyanalyzer')
         analyzer_args = [
             analyzer_path,
-            build_dir,
             args.app_path
         ]
         if args.congratulate:
diff --git a/sky/tools/skyanalyzer b/sky/tools/skyanalyzer
index 2230e727851..07aed87e3db 100755
--- a/sky/tools/skyanalyzer
+++ b/sky/tools/skyanalyzer
@@ -9,12 +9,14 @@ import re
 import subprocess
 import sys
 
-from skypy.url_mappings import URLMappings
-
 SKY_TOOLS_DIR = os.path.dirname(os.path.abspath(__file__))
 SKY_ROOT = os.path.dirname(SKY_TOOLS_DIR)
 SRC_ROOT = os.path.dirname(SKY_ROOT)
 
+WORKBENCH = os.path.join(SRC_ROOT, 'sky', 'packages', 'workbench')
+DART_SDK = os.path.join(SRC_ROOT, 'third_party', 'dart-sdk', 'dart-sdk', 'bin')
+DARTANALYZER = os.path.join(DART_SDK, 'dartanalyzer')
+
 _IGNORED_PATTERNS = [
   # Ignored because they're not indicative of specific errors.
   re.compile(r'^$'),
@@ -49,24 +51,13 @@ _IGNORED_PATTERNS = [
 def main():
     parser = argparse.ArgumentParser(description='Sky Analyzer')
     parser.add_argument('--congratulate', action="store_true")
-    parser.add_argument('build_dir', type=str)
     parser.add_argument('app_path', type=str)
-
     args = parser.parse_args()
-    build_dir = os.path.abspath(args.build_dir)
-
-    url_mappings = URLMappings(SRC_ROOT, build_dir)
-    analyzer_path = os.path.join(SRC_ROOT, 'third_party/dart-sdk/dart-sdk/bin/dartanalyzer')
-    packages_root = os.path.join(build_dir, 'gen/dart-pkg/packages')
-
-    analyzer_args = [
-        analyzer_path,
-        "--package-root", packages_root,
-        "--package-warnings", args.app_path
-    ] + url_mappings.as_args
 
     try:
-      subprocess.check_output(analyzer_args, stderr=subprocess.STDOUT)
+      subprocess.check_output([
+          DARTANALYZER, "--package-warnings", args.app_path
+      ], stderr=subprocess.STDOUT, cwd=WORKBENCH)
     except subprocess.CalledProcessError as e:
       errors = [l for l in e.output.split('\n')
                 if not any(p.match(l) for p in _IGNORED_PATTERNS)]
diff --git a/sky/tools/webkitpy/layout_tests/run_webkit_tests.py b/sky/tools/webkitpy/layout_tests/run_webkit_tests.py
index c53ad9b3653..7e15d083e7f 100644
--- a/sky/tools/webkitpy/layout_tests/run_webkit_tests.py
+++ b/sky/tools/webkitpy/layout_tests/run_webkit_tests.py
@@ -392,7 +392,6 @@ def run_tests(port, options, args, logging_stream):
         printer.cleanup()
 
 def run_analyzer(port, options, args, logging_stream):
-    build_dir = port.analyzer_build_directory()
     test_dir = os.path.dirname(os.path.abspath(__file__))
     sky_tools_dir = os.path.dirname(os.path.dirname(test_dir))
     analyzer_path = os.path.join(sky_tools_dir, 'skyanalyzer')
@@ -400,7 +399,6 @@ def run_analyzer(port, options, args, logging_stream):
     analyzer_target_path = os.path.join(src_dir, 'sky/sdk/example/stocks/lib/main.dart')
     analyzer_args = [
         analyzer_path,
-        build_dir,
         analyzer_target_path
     ]
     try:
diff --git a/travis/build.sh b/travis/build.sh
index eec6ee015de..50fbb9e3f66 100755
--- a/travis/build.sh
+++ b/travis/build.sh
@@ -3,4 +3,4 @@ set -ex
 
 ./sky/tools/gn --release
 ninja -j 4 -C out/Release
-./sky/tools/skyanalyzer --congratulate out/Release sky/sdk/example/stocks/lib/main.dart
+./sky/tools/skyanalyzer --congratulate sky/sdk/example/stocks/lib/main.dart