QObject::connect: invalid null parameter 错误通常发生在 Qt 框架中,当尝试使用 QObject::connect 函数连接信号和槽时,如果提供的任何参数(通常是发送者、接收者、信号或槽)为 nullptr,就会触发此错误。以下是对该问题的详细分析和解决步骤: 1. 确认 QObject::connect 函数的使用方法QObject::connect ...
I am getting an error: :0 : Warning: QObject::connect: invalid null parameter on startup. This is consistently reproducible since 7e3ad7b. As far as I can tell the problem seems to be that av is null in lines 237-238 in above mentioned commit:CoreAV* av = core->getAv(); connect...
Binary v0.9.3-311-gaca2d21 on Mac Load sample dataset Quit or reset (File -> Reset) tomviz. Output message prints QObject::connect: invalid null parameter (:0, )
QObject::connect: invalid null parameter info: OBS 0.14.1 (linux) info: --- info: --- info: audio settings reset: samples per sec: 44100 speakers: 2 The X11 connection broke: No error (code 0) XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0" after 21 ...
java.security.InvalidParameterException: url is null at com.huawei.agconnect.credential.obs.n.a(...
java.security.InvalidParameterException: url is null at com.huawei.agconnect.credential.obs.n.a(Unknown Source:42) at com.huawei.agconnect.common.api.Backend.call(Unknown Source:17) at com.huawei.agconnect.credential.obs.o.a(Unknown Source:283) ...
OUTBOUND_ATTEMPT_FAILED: There was an unknown error, invalid parameter, or insufficient permissions to call the API. EXPIRED: Not enough agents available, or not enough telecom capacity for such calls. AnsweringMachineDetectionStatus Indicates how an outbound campaign call is actually disposed if the...
OUTBOUND_ATTEMPT_FAILED: There was an unknown error, invalid parameter, or insufficient permissions to call the API. EXPIRED: Not enough agents available, or not enough telecom capacity for such calls. Chats can have the following disconnect reasons: AGENT_DISCONNECT: Agent explicitly disconnects or...
参数由百分比符号标识:%ParameterName% 字符串常量用引号括起来:例如,“Contoso”(注意:必须使用直引号“”,而不是智能引号“”) 数值在没有引号的情况下表示,应为十进制值。 十六进制值以 &H 作为前缀。 例如 98052、&HFF 布尔值用常量表示:True、False。
STATUS_INVALID_PARAMETER 调用方指定的参数无效。 例如,当调用方为设备的设备对象指定 NULL 时,会发生此错误。 STATUS_INVALID_PARAMETER_1 调用方为 Parameters 指向的结构的 Version 成员指定了无效值。 参数->版本 必须是CONNECT_LINE_BASED、CONNECT_MESSAGE_BASED或CONNECT_FULLY_SPECIFIED之一。 STA...