Exception in TreeBuilder:ParseData

[alphaville76]

The following exception occurs when I try to sync:

exception: /home/xxxx/git/grive/libgrive/src/xml/TreeBuilder.cc(76): Throw in function void gr::xml::TreeBuilder::ParseData(const char_, std::size_t, bool)
Dynamic exception type: boost::exception_detail::clone_implgr::xml::Error
[gr::xml::ExpatApiError__] = XML_Parse
[gr::expt::BacktraceTag*] = #0 0x4e9efa :0 gr::Exception::Exception()
#1 0x4f02f5 :0 gr::xml::Error::Error()
#2 0x4f23c1 :0 gr::xml::TreeBuilder::ParseData(char const*, unsigned long, bool)
#3 0x4d01e1 :0 gr::http::XmlResponse::Write(char const*, unsigned long)
#4 0x4d09be :0 gr::http::CurlAgent::Receive(void_, unsigned long, unsigned long, gr::DataStream_)
#5 0x3204414b60 /lib64/libcurl.so.4
#6 0x3204428195 /lib64/libcurl.so.4
#7 0x320443119b /lib64/libcurl.so.4
#8 0x3204431a71 /lib64/libcurl.so.4 curl_multi_perform
#9 0x320442924a /lib64/libcurl.so.4 curl_easy_perform
#10 0x4d0ade :0 gr::http::CurlAgent::ExecCurl(std::string const&, gr::DataStream*, gr::http::Header const&)
#11 0x4d102f :0 gr::http::CurlAgent::Put(std::string const&, gr::File_, gr::DataStream_, gr::http::Header const&)
#12 0x4e3d2d :0 gr::AuthAgent::Put(std::string const&, gr::File_, gr::DataStream_, gr::http::Header const&)
#13 0x505ccc :0 gr::v1::Resource::Upload(gr::http::Agent*, std::string const&, bool)
#14 0x5055c7 :0 gr::v1::Resource::Create(gr::http::Agent*)
#15 0x503f05 :0 gr::v1::Resource::SyncSelf(gr::http::Agent*, gr::Json const&)
#16 0x503b6c :0 gr::v1::Resource::Sync(gr::http::Agent*, gr::DateTime&, gr::Json const&)
#17 0x50926d :0 boost::mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>::operator()(gr::v1::Resource, gr::http::Agent_, gr::DateTime&, gr::Json const&) const
#18 0x5086ef :0 void boost::_bi::list4boost::arg<1, boost::_bi::valuegr::http::Agent*, boost::reference_wrappergr::DateTime, boost::_bi::valuegr::Json >::operator()<boost::_mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>, boost::_bi::list1gr::v1::Resource*& >(boost::_bi::type, boost::_mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>&, boost::_bi::list1gr::v1::Resource*&&, int)
#19 0x507c44 :0 void boost::_bi::bind_t<void, boost::_mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>, boost::_bi::list4boost::arg<1, boost::_bi::valuegr::http::Agent*, boost::reference_wrappergr::DateTime, boost::_bi::valuegr::Json > >::operator()gr::v1::Resource*(gr::v1::Resource*&)
#20 0x50722c :0 boost::_bi::bind_t<void, boost::_mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>, boost::_bi::list4boost::arg<1, boost::_bi::valuegr::http::Agent*, boost::reference_wrappergr::DateTime, boost::_bi::valuegr::Json > > std::for_each<__gnu_cxx::__normal_iterator<gr::v1::Resource**, std::vector<gr::v1::Resource*, std::allocatorgr::v1::Resource* > >, boost::_bi::bind_t<void, boost::_mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>, boost::_bi::list4boost::arg<1, boost::_bi::valuegr::http::Agent*, boost::reference_wrappergr::DateTime, boost::_bi::valuegr::Json > > >(__gnu_cxx::__normal_iterator<gr::v1::Resource**, std::vector<gr::v1::Resource*, std::allocatorgr::v1::Resource* > >, __gnu_cxx::__normal_iterator<gr::v1::Resource**, std::vector<gr::v1::Resource*, std::allocatorgr::v1::Resource* > >, boost::_bi::bind_t<void, boost::_mfi::mf3<void, gr::v1::Resource, gr::http::Agent*, gr::DateTime&, gr::Json const&>, boost::_bi::list4boost::arg<1, boost::_bi::valuegr::http::Agent*, boost::reference_wrappergr::DateTime, boost::_bi::valuegr::Json > >)
#21 0x503c6d :0 gr::v1::Resource::Sync(gr::http::Agent*, gr::DateTime&, gr::Json const&)
#22 0x4c8543 :0 gr::v1::State::Sync(gr::http::Agent*, gr::Json const&)
#23 0x4cd232 :0 gr::v1::Drive::Update()
#24 0x4a99a5 :0 Main(int, char**)
#25 0x4a9ef6 :0 main
#26 0x3320421b75 /lib64/libc.so.6 __libc_start_main
#27 0x4a8809 :0 _start

I've built from source under Fedora 19.