message: Fix Raise an error when viewing a non existing PDF file
diff: @@ -46,6 +46,7 @@ export class Viewer {
  const pdfFile = this.extension.manager.tex2pdf(sourceFile, respectOutDir)
  if (!fs.existsSync(pdfFile)) {
  this.extension.logger.addLogMessage(`Cannot find PDF file ${pdfFile}`)
  + this.extension.logger.showErrorMessage(`Cannot find PDF file ${pdfFile}`)
  return
  }
  if (this.extension.server.address === undefined) {
  