我一直在尝试让PCP LibJingle示例工作几天。在解决了所有编译和运行错误后，我现在遇到了一个我以前没有遇到过的错误。
当作为发送方或接收方运行程序时，程序会收到503“服务不可用”错误并终止程序，但运行时服务器工作正常。我知道标准是5xx意味着服务器端错误，所以我逐行查看程序输出（在末尾提供）。从我对服务器和LibJingle的近零经验来看，我能想到的最好的是以下任何一个（或两个）都会导致503：
我已登录两个Google帐户，因此他们不会离线/不可用，而且LibJingle程序会反映这一点。但是，只要PCP示例运行，优先级就会设置回-1。我还注意到，程序输出中的大多数（如果不是全部）Google链接都是404。
我的问题：
提前感谢您的帮助。 --KMC
P.S。在提供的程序输出中，我试图从forge ... 1@gmail.com发送文件到forge ... 2@gmail.com。我审查了一些事情并试图减少其他比特。但是，不确定哪些可能相关或不相关，我没有做太多切割。如果某个mod或其他人知道可能相关的内容并希望对其进行编辑，请随意这样做。
forgefour@forgefour-ubuntu:~/Desktop$ ./LibJingle_Install/libjingle-0.6.13/talk/build/dbg/staging/pcp forge..1@gmail.com call_main.pdf forge..2@gmail.com/pcp8B13E6B8:outputmainadobe.pdf
Directory: /home/forgefour/Desktop
Password:
connecting...
[002:406] OpenSSLAdapter::OnConnectEvent
[002:406] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:17 2012
[002:406] <stream:stream to="gmail.com" xml:lang="*" version="1.0" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">
logging in...
[002:446] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:17 2012
[002:446] <stream:stream from="gmail.com" id="00B7404A40B94AA0" version="1.0" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">
[002:447] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:17 2012
[002:447] <stream:features>
[002:447] <starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls">
[002:447] <required/>
[002:447] </starttls>
[002:447] <mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl">
[002:447] <mechanism>
[002:447] X-GOOGLE-TOKEN
[002:447] </mechanism>
[002:447] <mechanism>
[002:447] X-OAUTH2
[002:447] </mechanism>
[002:447] </mechanisms>
[002:447] </stream:features>
[002:447] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:17 2012
[002:447] <starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>
[002:488] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:17 2012
[002:488] <proceed xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>
[002:488] BeginSSL: gmail.com
[002:488] ContinueSSL
[002:488] SSL_connect:before/connect initialization
[002:489] SSL_connect:SSLv3 write client hello A
[002:489] SSL_connect:error in SSLv3 read server hello A
[002:489] -- error want read
[002:489] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:17 2012
[002:489] <stream:stream to="gmail.com" xml:lang="*" version="1.0" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">
[002:530] ContinueSSL
[002:530] SSL_connect:error in SSLv3 read server hello A
[002:530] -- error want read
[002:531] ContinueSSL
[002:531] SSL_connect:SSLv3 read server hello A
[002:531] SSL_connect:SSLv3 read server certificate A
[002:531] SSL_connect:SSLv3 read server done A
[002:531] SSL_connect:SSLv3 write client key exchange A
[002:532] SSL_connect:SSLv3 write change cipher spec A
[002:532] SSL_connect:SSLv3 write finished A
[002:532] SSL_connect:SSLv3 flush data
[002:532] SSL_connect:error in SSLv3 read finished A
[002:532] -- error want read
[002:575] ContinueSSL
[002:575] SSL_connect:SSLv3 read finished A
[002:575] -- success
[002:575] Certificate from server:
[002:575] Version: 3 (0x2)
Serial Number:31:fa:c7:51:00:00:00:00:5b:30
Signature Algorithm: sha1WithRSAEncryption
Issuer: C=US, O=Google Inc, CN=Google Internet Authority
Validity
Not Before: Jun 5 00:52:14 2012 GMT
Not After : Jun 5 01:02:14 2013 GMT
Subject: C=US, ST=California, L=Mountain View, O=Google Inc, CN=gmail.com
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (1024 bit)
Modulus:...
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Extended Key Usage:
TLS Web Server Authentication, TLS Web Client Authentication
X509v3 Subject Key Identifier:
E1:73:4D:BB:F5:22:C3:57:06:EA:BF:18:73:1F:91:29:EE:54:2A:17
X509v3 Authority Key Identifier:
keyid:BF:C0:30:EB:F5:43:11:3E:67:BA:9E:91:FB:FC:6A:DA:E3:6B:12:24
X509v3 CRL Distribution Points:
Full Name:URI:http://www.gstatic.com/GoogleInternetAuthority/GoogleInternetAuthority.crl
Authority Information Access:
CA Issuers - URI:http://www.gstatic.com/GoogleInternetAuthority/GoogleInternetAuthority.crt
X509v3 Subject Alternative Name: DNS:gmail.com
Signature Algorithm: sha1WithRSAEncryption...
[002:575] Cipher: AES128-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(128) Mac=SHA1
[002:616] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:616] <stream:stream from="gmail.com" id="F585A9BF4936FE0D" version="1.0" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">
[002:616] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:616] <stream:features>
[002:616] <mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl">
[002:616] <mechanism>
[002:616] PLAIN
[002:616] </mechanism>
[002:616] <mechanism>
[002:616] X-GOOGLE-TOKEN
[002:616] </mechanism>
[002:616] <mechanism>
[002:616] X-OAUTH2
[002:616] </mechanism>
[002:616] </mechanisms>
[002:616] </stream:features>
[002:617] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:617] <auth xmlns="urn:ietf:params:xml:ns:xmpp-sasl" mechanism="PLAIN" auth:allow-non-google-login="true" auth:client-uses-full-bind-result="true" xmlns:auth="http://www.google.com/talk/protocol/auth">
[002:617] ## TEXT REMOVED ##
[002:617] </auth>
[002:696] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:696] <success xmlns="urn:ietf:params:xml:ns:xmpp-sasl"/>
[002:697] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:697] <stream:stream to="gmail.com" xml:lang="*" version="1.0" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">
[002:737] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:737] <stream:stream from="gmail.com" id="A554FE81E66DED32" version="1.0" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">
[002:737] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:737] <stream:features>
[002:737] <bind xmlns="urn:ietf:params:xml:ns:xmpp-bind"/>
[002:737] <session xmlns="urn:ietf:params:xml:ns:xmpp-session"/>
[002:737] </stream:features>
[002:737] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:737] <iq type="set" id="0">
[002:737] <bind xmlns="urn:ietf:params:xml:ns:xmpp-bind">
[002:737] <resource>
[002:737] pcp
[002:737] </resource>
[002:737] </bind>
[002:737] </iq>
[002:777] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:777] <iq id="0" type="result">
[002:777] <bind xmlns="urn:ietf:params:xml:ns:xmpp-bind">
[002:777] <jid>
[002:777] forge...1@gmail.com/pcp7B23909E
[002:777] </jid>
[002:777] </bind>
[002:777] </iq>
[002:777] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:777] <iq type="set" id="1">
[002:777] <session xmlns="urn:ietf:params:xml:ns:xmpp-session"/>
[002:777] </iq>
[002:778] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:817] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:817] <iq type="result" id="1"/>
logged in...
[002:817] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:817] <presence>
[002:817] <priority>
[002:817] -1
[002:817] </priority>
[002:817] </presence>
Logged in as forge...1@gmail.com/pcp7B23909E
[002:817] Making key pair
[002:822] Returning key pair
[002:822] Making certificate for forge...1@gmail.com/pcp7B23909E
[002:823] Returning certificate
[002:823] TunnelSessionClientBase::OnSessionCreate: received=0
[002:823] Session:2481285798 Old state:STATE_INIT New state:STATE_SENTINITIATE Type:http://www.google.com/talk/securetunnel Transport:http://www.google.com/transport/p2p
[002:823] TunnelSession::OnSessionState(Session::STATE_SENTINITIATE)
[002:823] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:823] <iq type="get" id="3">
[002:823] <query xmlns="google:jingleinfo"/>
[002:823] </iq>
[002:823] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:823] <iq to="forge...2@gmail.com/pcp8B13E6B8" type="set" id="5">
[002:823] <jingle xmlns="urn:xmpp:jingle:1" action="session-initiate" sid="2481285798" initiator="forge...1@gmail.com/pcp7B23909E">
[002:823] <content name="securetunnel" creator="initiator">
[002:823] <description xmlns="http://www.google.com/talk/securetunnel">
[002:823] <type>
[002:823] recv:outputmainadobe.pdf
[002:823] </type>
[002:823] <client-cert>
[002:823] -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:823] </client-cert>
[002:823] </description>
[002:823] <transport xmlns="http://www.google.com/transport/p2p"/>
[002:823] </content>
[002:823] </jingle>
[002:823] <session xmlns="http://www.google.com/session" type="initiate" id="2481285798" initiator="forge...1@gmail.com/pcp7B23909E">
[002:823] <description xmlns="http://www.google.com/talk/securetunnel">
[002:823] <type>
[002:823] recv:outputmainadobe.pdf
[002:823] </type>
[002:823] <client-cert>
[002:823] -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:823] </client-cert>
[002:823] </description>
[002:823] </session>
[002:823] </iq>
[002:867] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:867] <iq to="forge...1@gmail.com/pcp7B23909E" id="3" type="result">
[002:867] <query xmlns="google:jingleinfo">
[002:867] <stun>
[002:867] <server host="stun.l.google.com" udp="19302"/>
[002:867] <server host="alt3.stun.l.google.com" udp="19302"/>
[002:867] <server host="alt2.stun.l.google.com" udp="19302"/>
[002:867] <server host="alt4.stun.l.google.com" udp="19302"/>
[002:867] <server host="alt1.stun.l.google.com" udp="19302"/>
[002:867] </stun>
[002:867] <relay>
[002:867] <token>
[002:867] CAESHgoVZm9yZ2Vjb21tczFAZ21haWwuY29tEJXfqb2CJxoQy4rGyFRtv1QQGHf8AQWC0A==
[002:867] </token>
[002:867] <server host="relay.google.com" udp="19295" tcp="19294" tcpssl="443"/>
[002:867] </relay>
[002:867] </query>
[002:867] </iq>
[002:880] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:880] <presence from="forge...1@gmail.com/pcp0C32AC91" to="forge...1@gmail.com/pcp7B23909E">
[002:880] <priority>
[002:880] -1
[002:880] </priority>
[002:880] <x xmlns="vcard-temp:x:update"/>
[002:880] </presence>
[002:880] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:882] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:882] <presence from="cu...@gmail.com/gmail.17841843" to="forge...1@gmail.com/pcp7B23909E">
[002:882] <status/>
[002:882] <priority>
[002:882] 24
[002:882] </priority>
[002:882] <caps:c node="http://mail.google.com/xmpp/client/caps" ver="1.1" ext="pmuc-v1 sms-v1 camera-v1 video-v1 voice-v1" xmlns:caps="http://jabber.org/protocol/caps"/>
[002:882] <x xmlns="vcard-temp:x:update">
[002:882] <photo>
[002:882] c632207e8c5c202147ccbd6c431334234750f966
[002:882] </photo>
[002:882] </x>
[002:882] </presence>
[002:956] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:956] <iq to="forge...1@gmail.com/pcp7B23909E" type="error" id="5" from="forge...2@gmail.com/pcp8B13E6B8">
[002:956] <jingle action="session-initiate" sid="2481285798" initiator="forge...1@gmail.com/pcp7B23909E" xmlns="urn:xmpp:jingle:1">
[002:956] <content name="securetunnel" creator="initiator">
[002:956] <description xmlns="http://www.google.com/talk/securetunnel">
[002:956] <type>
[002:956] recv:outputmainadobe.pdf
[002:956] </type>
[002:956] <client-cert>
[002:956] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:956] -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:956] </client-cert>
[002:956] </description>
[002:956] <transport xmlns="http://www.google.com/transport/p2p"/>
[002:956] </content>
[002:956] </jingle>
[002:956] <session type="initiate" id="2481285798" initiator="forge...1@gmail.com/pcp7B23909E" xmlns="http://www.google.com/session">
[002:956] <description xmlns="http://www.google.com/talk/securetunnel">
[002:956] <type>
[002:956] recv:outputmainadobe.pdf
[002:956] </type>
[002:956] <client-cert>
[002:956] RECV <<<<<<<<<<<<<<<<<<<<<<<<< : Mon Jun 25 17:09:18 2012
[002:956] -----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
[002:956] </client-cert>
[002:956] </description>
[002:956] </session>
[002:956] <error code="503" type="cancel">
[002:956] <service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
[002:956] </error>
[002:956] </iq>
[002:957] Error(session.cc:858): Session error:
<cli:error code="503" type="cancel" xmlns:cli="jabber:client"><service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></cli:error>
in response to:
<cli:iq to="forge...2@gmail.com/pcp8B13E6B8" type="set" id="5" xmlns:cli="jabber:client"><jingle xmlns="urn:xmpp:jingle:1" action="session-initiate" sid="2481285798" initiator="forge.1@gmail.com/pcp7B23909E"><content name="securetunnel" creator="initiator"><description xmlns="http://www.google.com/talk/securetunnel"><type>recv:outputmainadobe.pdf</type><client-cert>-----BEGIN CERTIFICATE-----...-----END CERTIFICATE-----
</client-cert></description><transport xmlns="http://www.google.com/transport/p2p"/></content></jingle><session xmlns="http://www.google.com/session" type="initiate" id="2481285798" initiator="forge...1@gmail.com/pcp7B23909E"><description xmlns="http://www.google.com/talk/securetunnel"><type>recv:outputmainadobe.pdf</type><client-cert>-----BEGIN CERTIFICATE-----...----END CERTIFICATE-----
</client-cert></description></session></cli:iq>
[002:957] Session:2481285798 Old state:STATE_SENTINITIATE New state:STATE_SENTTERMINATE Type:http://www.google.com/talk/securetunnel Transport:http://www.google.com/transport/p2p
[002:957] TunnelSession::OnSessionState(Session::STATE_SENTTERMINATE)
[002:957] Destroying unconnected PseudoTcpChannel
[002:957] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:957] <iq to="forge...2@gmail.com/pcp8B13E6B8" type="set" id="6">
[002:957] <jingle xmlns="urn:xmpp:jingle:1" action="session-terminate" sid="2481285798">
[002:957] <reason>
[002:957] <general-error/>
[002:957] </reason>
[002:957] </jingle>
[002:957] <session xmlns="http://www.google.com/session" type="terminate" id="2481285798" initiator="forge...1@gmail.com/pcp7B23909E">
[002:957] <general-error/>
[002:957] </session>
[002:957] </iq>
[002:957] OpenSSLStreamAdapter::OnEvent(SE_CLOSE, -1)
[002:957] Cleanup
Tunnel closed with error: -1
[002:957] Cleanup
[002:957] TunnelSessionClientBase::OnSessionDestroy
[002:957] Session:2481285798 Old state:STATE_SENTTERMINATE New state:STATE_DEINIT Type:http://www.google.com/talk/securetunnel Transport:http://www.google.com/transport/p2p
[002:957] virtual void cricket::PseudoTcpChannel::OnMessage(talk_base::Message*): (MSG_SI_DESTROY)
[002:957] SEND >>>>>>>>>>>>>>>>>>>>>>>>> : Mon Jun 25 17:09:18 2012
[002:957] </stream:stream>
logged out...
[002:957] Cleanup
int main(int argc, char **argv) {
talk_base::LogMessage::LogThreads();
talk_base::LogMessage::LogTimestamps();
// Parse the arguments.
int index = 1;
while (index < argc) {
std::string name, value;
if (!ParseArg(argv[index], &name, &value))
break;
if (name == "help") {
Usage();
} else if (name == "verbose") {
talk_base::LogMessage::LogToDebug(talk_base::LS_VERBOSE);
} else if (name == "xmpp-host") {
gXmppHost = value;
} else if (name == "xmpp-port") {
gXmppPort = ParseIntArg(name, value);
} else if (name == "xmpp-use-tls") {
gXmppUseTls = ParseBoolArg(name, value)?
buzz::TLS_REQUIRED : buzz::TLS_DISABLED;
} else {
Error(std::string("unknown option: ") + name);
}
index += 1;
}
if (index >= argc)
Error("bad arguments");
gUserJid = buzz::Jid(argv[index++]);
if (!gUserJid.IsValid())
Error("bad arguments");
char path[MAX_PATH];
#if WIN32
GetCurrentDirectoryA(MAX_PATH, path);
#else
if (NULL == getcwd(path, MAX_PATH))
Error("Unable to get current path");
#endif
std::cout << "Directory: " << std::string(path) << std::endl;
buzz::Jid gSrcJid;
buzz::Jid gDstJid;
std::string gSrcFile;
std::string gDstFile;
bool as_server = true;
if (index + 2 == argc) {
ParseFileArg(argv[index], &gSrcJid, &gSrcFile);
ParseFileArg(argv[index+1], &gDstJid, &gDstFile);
if(gSrcJid.Str().empty() == gDstJid.Str().empty())
Error("Exactly one of source JID or destination JID must be empty.");
as_server = false;
} else if (index != argc) {
Error("bad arguments");
}
std::cout << "Password: ";
SetConsoleEcho(false);
std::cin >> gUserPass.password();
SetConsoleEcho(true);
std::cout << std::endl;
talk_base::InitializeSSL();
CustomXmppPump pump;// Log in.
pump.client()->SignalLogInput.connect(&debug_log_, &DebugLog::Input);
pump.client()->SignalLogOutput.connect(&debug_log_, &DebugLog::Output);
pump.DoLogin(LoginSettings(), new XmppSocket(gXmppUseTls), 0);
// Wait until login succeeds.
std::vector<uint32> ids;
ids.push_back(MSG_LOGIN_COMPLETE);
ids.push_back(MSG_LOGIN_FAILED);
if (MSG_LOGIN_FAILED == Loop(ids))
FatalError("Failed to connect");{
talk_base::scoped_ptr<buzz::XmlElement> presence(
new buzz::XmlElement(buzz::QN_PRESENCE));
presence->AddElement(new buzz::XmlElement(buzz::QN_PRIORITY));
presence->AddText("-1", 1);
pump.SendStanza(presence.get());
}
std::string user_jid_str = pump.client()->jid().Str();
std::cout << "Logged in as " << user_jid_str << std::endl;
// Prepare the random number generator.
talk_base::InitRandom(user_jid_str.c_str(), user_jid_str.size());
// Create the P2P session manager.
talk_base::BasicNetworkManager network_manager;
AutoPortAllocator allocator(&network_manager, "pcp_agent");
allocator.SetXmppClient(pump.client());
cricket::SessionManager session_manager(&allocator);
#ifdef USE_SSL_TUNNEL
cricket::SecureTunnelSessionClient session_client(pump.client()->jid(),
&session_manager);
if (!session_client.GenerateIdentity())
FatalError("Failed to generate SSL identity");
#else // !USE_SSL_TUNNEL
cricket::TunnelSessionClient session_client(pump.client()->jid(),
&session_manager);
#endif // USE_SSL_TUNNEL
cricket::SessionManagerTask *receiver =
new cricket::SessionManagerTask(pump.client(), &session_manager);
receiver->EnableOutgoingMessages();
receiver->Start();
bool success = true;
if (as_server) {// Establish the appropriate connection.
pump.Serve(&session_client);
} else {
talk_base::StreamInterface* stream = NULL;
std::string filename;
bool sending;
if (gSrcJid.Str().empty()) {
std::string message("recv:");
message.append(gDstFile);
stream = session_client.CreateTunnel(gDstJid, message);
filename = gSrcFile;
sending = true;
} else {
std::string message("send:");
message.append(gSrcFile);
stream = session_client.CreateTunnel(gSrcJid, message);
filename = gDstFile;
sending = false;
}
success = pump.ProcessStream(stream, filename, sending);
}
if (success) {
// Wait until the copy is done.
ids.clear();
ids.push_back(MSG_DONE);
ids.push_back(MSG_LOGIN_FAILED);
Loop(ids);
}
pump.DoDisconnect();// Log out.
return 0;
}
答案 0 :(得分：2)
好的，所以这个错误是因为错误的完整JID和错误的代码执行。 PCP应按照提供的顺序运行：
发生此错误是因为正在使用的代码执行方法阻止将帐户视为可用。这与服务器错误或缺少Google服务无关（很抱歉让您怀疑，Google）。至于优先级为-1，这也与错误无关（如在读取XMPP后学到的）。