* apt-pkg/cacheset.cc:

   - make CacheSetHelper::canNotFindAllVer display a notice
     only (for compat reasons). Otherwise tools like sbuild
     blow up

apt-pkg/cacheset.cc

@@ -464,7 +464,7 @@ PackageSet CacheSetHelper::canNotFindPackage(pkgCacheFile &Cache, std::string co
 VersionSet CacheSetHelper::canNotFindAllVer(pkgCacheFile &Cache,
 		pkgCache::PkgIterator const &Pkg) {
 	if (ShowError == true)
-		_error->Error(_("Can't select versions from package '%s' as it purely virtual"), Pkg.FullName(true).c_str());
+		_error->Notice(_("Can't select versions from package '%s' as it purely virtual"), Pkg.FullName(true).c_str());
 	return VersionSet();
 }
 									/*}}}*/

debian/changelog

@@ -2,6 +2,10 @@ apt (0.7.26~exp12) UNRELEASEDexperimental; urgency=low
 
   * debian/control:
     - add dependency on zlib-dev for libapt-pkg-dev
+   * apt-pkg/cacheset.cc:
+     - make CacheSetHelper::canNotFindAllVer display a notice
+       only (for compat reasons). Otherwise tools like sbuild
+       blow up
 
  -- Michael Vogt <michael.vogt@ubuntu.com>  Thu, 29 Jul 2010 23:45:42 +0200