octobercms/october · error · ApplicationException

File is not valid

Error message

File is not valid

What it means

Error "File is not valid" thrown in octobercms/october.

Source

Thrown at modules/backend/formwidgets/FileUpload.php:503

            if ($fileTypes = $this->getAcceptedFileTypes()) {
                $validationRules[] = 'extensions:'.$fileTypes;
            }

            if ($this->mimeTypes) {
                $validationRules[] = 'mimes:'.$this->mimeTypes;
            }

            $validation = Validator::make(
                ['file_data' => $uploadedFile],
                ['file_data' => $validationRules]
            );

            if ($validation->fails()) {
                throw new ValidationException($validation);
            }

            if (!$uploadedFile->isValid()) {
                throw new ApplicationException('File is not valid');
            }

            $fileRelation = $this->getRelationObject();

            // Check and clean vector files
            // @deprecated v4 this should be moved to a post processing method on the file model
            $extension = strtolower($uploadedFile->getClientOriginalExtension());
            if ($extension === 'svg' && \Config::get('media.clean_vectors', true)) {
                // getRealPath() can be empty for some environments (IIS)
                $realPath = empty(trim($uploadedFile->getRealPath()))
                    ? $uploadedFile->getPath() . DIRECTORY_SEPARATOR . $uploadedFile->getFileName()
                    : $uploadedFile->getRealPath();

                \File::put($realPath, \Html::cleanVector(\File::get($realPath)));
            }

            $file = $fileModel;
            $file->data = $uploadedFile;

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/formwidgets/FileUpload.php:503 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of octobercms/october@b608633a7e (2026-08-21). Data as JSON: /api/errors/8fb1d6d2652a7374. Report an issue: GitHub.