Improve an error message (#117)

* issue #27: improve an error message

Author: AR-May

src/dotnet-install.ps1

@@ -871,7 +871,9 @@ if (!$isAssetInstalled) {
     $isAssetInstalled = Is-Dotnet-Package-Installed -InstallRoot $InstallRoot -RelativePathToPackage $dotnetPackageRelativePath -SpecificVersion $SpecificVersion
 }
 
+# Version verification failed. More likely something is wrong either with the downloaded content or with the verification algorithm.
 if (!$isAssetInstalled) {
+    Say-Error "Failed to verify the version of installed `"$assetName`".`nInstallation source: $DownloadLink.`nInstallation location: $InstallRoot.`nReport the bug at https://github.com/dotnet/install-scripts/issues."
     throw "`"$assetName`" with version = $SpecificVersion failed to install with an unknown error."
 }
 

src/dotnet-install.sh

@@ -966,6 +966,8 @@ install_dotnet() {
         return 0
     fi
 
+    # Version verification failed. More likely something is wrong either with the downloaded content or with the verification algorithm.
+    say_err "Failed to verify the version of installed \`$asset_name\`.\nInstallation source: $download_link.\nInstallation location: $install_root.\nReport the bug at https://github.com/dotnet/install-scripts/issues."
     say_err "\`$asset_name\` with version = $specific_product_version failed to install with an unknown error."
     return 1
 }