It took a long time (a minute or two) but I never had an error message, no.
For the VS 2015 preview I changed the Installation and Dependencies sections of the extension.vsixmanifest to this:
Quote:
<Installation InstalledByMsi="false">
<InstallationTarget Version="[11.0,14.0]" Id="Microsoft.VisualStudio.Pro" />
<InstallationTarget Version="[11.0,14.0]" Id="Microsoft.VisualStudio.Premium" />
<InstallationTarget Version="[11.0,14.0]" Id="Microsoft.VisualStudio.Ultimate" />
</Installation>
<Dependencies>
<Dependency Id="Microsoft.Framework.NDP" DisplayName="Microsoft .NET Framework" Version="4.5" />
<Dependency Id="Microsoft.VisualStudio.MPF.12.0" DisplayName="Visual Studio MPF 12.0" Version="12.0" />
</Dependencies>
Looks good so far