diff --git a/.github/workflows/testCode.yaml b/.github/workflows/testCode.yaml
index 4a4459f..0bec067 100644
--- a/.github/workflows/testCode.yaml
+++ b/.github/workflows/testCode.yaml
@@ -34,12 +34,12 @@ jobs:
       shell: cmd
       # E2E: test to check the script can be run, no need to actually test the file.
       # The internal checks are covered with unit tests.
-      run: .\runvalidate.bat --dry-run _test/testData/addons/fake/13.0.json tests\testData\nvdaAPIVersions.json
+      run: .\runvalidate.bat --dry-run tests/testData/addons/fake/13.0.0.json tests/testData/nvdaAPIVersions.json
     - name: Get sha256
       shell: cmd
       # E2E: test to check the script can be run
-      run: .\runsha.bat tests\testData\fake.nvda-addon
+      run: .\runsha.bat tests/testData/fake.nvda-addon
     - name: Generate json file
       shell: cmd
       # E2E: test to check the script can be run
-      run: .\runcreatejson.bat -f tests\testData\fake.nvda-addon --dir tests\testOutput\test_runcreatejson --channel=stable --publisher=fakepublisher --sourceUrl=https://github.com/fake/ --url=https://github.com/fake.nvda-addon --licName="GPL v2" --licUrl="https://www.gnu.org/licenses/gpl-2.0.html"
+      run: .\runcreatejson.bat -f tests/testData/fake.nvda-addon --dir tests/testOutput/test_runcreatejson --channel=stable --publisher=fakepublisher --sourceUrl=https://github.com/fake/ --url=https://github.com/fake.nvda-addon --licName="GPL v2" --licUrl="https://www.gnu.org/licenses/gpl-2.0.html"
diff --git a/_validate/validate.py b/_validate/validate.py
index 28402d8..5490511 100644
--- a/_validate/validate.py
+++ b/_validate/validate.py
@@ -380,6 +380,9 @@ def main():
 	if errorOutputFile and os.path.exists(errorOutputFile):
 		os.remove(errorOutputFile)
 
+	if not addonFiles:
+		raise ValueError(f"No files found matching: {args.filePathGlob}")
+
 	if not args.dry_run:
 		anyErrors = False
 		for filename in addonFiles: