Php 致命错误：未捕获SoapFault异常：[env:Client]内部错误

我正试图用我的PHP SOAP客户端发送测试消息。我正在使用BeSimpleSoap库，因为我在使用标准PHP SOAP calss和NuSOAP类时遇到了问题。 脚本的一部分是：

        $client = new BeSimple\SoapClient\SoapClient("GSBService.wsdl", array( 
                        "trace"=>1,
                        "exceptions"=>1,
                        'location'=>$SERVICE_TEST,
                        "local_cert" =>$SOAP_cert,
                        'uri'=>$NAMESPACE_URI,
                        "passphrase"=>$cert_password,
                            "connection_timeout" => 60));

        var_dump($client->echo('abc1234'));
        print_r( $client->sendMessage($par_envelope));



        echo "<p>Request :".htmlspecialchars($client->__getLastRequest()) ."</p>";
        echo "<p>Response:".htmlspecialchars($client->__getLastResponse())."</p>";
        echo "<p>Debug:".soapDebug($client)."</p>";

我试过：

ini_set('soap.wsdl_cache_enabled',0);

得到这个：

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing Schema: can't import schema from 'file:///schema/GSBSchema.xsd' in C:\xampp\htdocs\NIAS\BeSimpleSoap-master\src\BeSimple\SoapClient\SoapClient.php:113 Stack trace: #0 C:\xampp\htdocs\NIAS\BeSimpleSoap-master\src\BeSimple\SoapClient\SoapClient.php(113): SoapClient->SoapClient('\wsdl_9429a1dff...', Array) #1 C:\xampp\htdocs\NIAS\HZZO-OKP-SOAP.php(134): BeSimple\SoapClient\SoapClient->__construct('GSBService.wsdl', Array) #2 {main} thrown in C:\xampp\htdocs\NIAS\BeSimpleSoap-master\src\BeSimple\SoapClient\SoapClient.php on line 113

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问题在于$par_信封的编码。 在我用utf8编码UTF-8编码字符串之后，我没有得到 致命错误：未捕获SoapFault异常：[env:Client]内部错误

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing Schema: can't import schema from 'file:///schema/GSBSchema.xsd' in C:\xampp\htdocs\NIAS\BeSimpleSoap-master\src\BeSimple\SoapClient\SoapClient.php:113 Stack trace: #0 C:\xampp\htdocs\NIAS\BeSimpleSoap-master\src\BeSimple\SoapClient\SoapClient.php(113): SoapClient->SoapClient('\wsdl_9429a1dff...', Array) #1 C:\xampp\htdocs\NIAS\HZZO-OKP-SOAP.php(134): BeSimple\SoapClient\SoapClient->__construct('GSBService.wsdl', Array) #2 {main} thrown in C:\xampp\htdocs\NIAS\BeSimpleSoap-master\src\BeSimple\SoapClient\SoapClient.php on line 113