VS2005 publish报错：Object reference not set to an instance of an object.

最新推荐文章于 2025-10-11 09:59:25 发布
原创 最新推荐文章于 2025-10-11 09:59:25 发布 · 2.7k 阅读 · 0 ·
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#vspublish报错 #Object reference not set to an

作者在使用VS2008发布项目遇到问题后回退到VS2005, 发现因xxx.compiled文件导致无法发布。通过删除该文件解决了发布问题。

之前在vs2005是可以publish的，后面我用了vs2008打开项目并运行了后，产生了很多文件，之后发现在vs2008上publish有问题，解决不了，就reset了代码，然后用vs2005 publish，发现报这个错，心里面哇凉哇凉的。

之后去bing、百度搜索解决方案，发现都不行，都尝试了下，没有任何反应。突然发现项目的Bin目录下面有一个xxx.compiled文件，其实之前一直有的，不过这次就想着删了试下，结果发现可以publish了，开心。

但为什么会报这个错呢，其实是因为这个文件里面有一段代码指定了virtualPath，结果我可能在切换工具的时候给删掉这种指定了。所以有两种解决方案，一种是设置virtualPath，另外一种是删掉这个文件，应该都ok的。不过我不会设置，发现自己尝试设置了下，还是不行啦，所以采用了删除这个文件的解决方案。

【unity报错】NullReferenceException: Object reference not set to an instance of an object
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遵循我的黄金法则：如果它可以为空，它将为空！
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原因：1、获取控件的时候使用了错误的控件名。2、使用了错误的路径，路已经没拼全，或者遗漏。未将对象引用到对象的实例，大部分出现在控件的获取失败。
C# System.NullReferenceException: Object reference not set to an instance of an object
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/********************************************************************* * Software License Agreement (BSD License) * * Copyright (c) 2019, PickNik Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of PickNik Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. *********************************************************************/ /* Author: Henning Kayser Desc: A high level interface that does not require the use of ROS Actions, Services, and Messages to access the core MoveIt functionality */ #pragma once #include <rclcpp/rclcpp.hpp> #include <moveit/controller_manager/controller_manager.hpp> #include <moveit/planning_scene_monitor/planning_scene_monitor.hpp> #include <moveit/planning_pipeline/planning_pipeline.hpp> #include <moveit/trajectory_execution_manager/trajectory_execution_manager.hpp> #include <moveit/robot_state/robot_state.hpp> #include <tf2_ros/buffer.h> namespace moveit_cpp { MOVEIT_CLASS_FORWARD(MoveItCpp); // Defines MoveItCppPtr, ConstPtr, WeakPtr... etc class MoveItCpp { public: /// Specification of options to use when constructing the MoveItCpp class struct PlanningSceneMonitorOptions { PlanningSceneMonitorOptions() : joint_state_topic(planning_scene_monitor::PlanningSceneMonitor::DEFAULT_JOINT_STATES_TOPIC) , attached_collision_object_topic( planning_scene_monitor::PlanningSceneMonitor::DEFAULT_ATTACHED_COLLISION_OBJECT_TOPIC) , monitored_planning_scene_topic(planning_scene_monitor::PlanningSceneMonitor::MONITORED_PLANNING_SCENE_TOPIC) , publish_planning_scene_topic(planning_scene_monitor::PlanningSceneMonitor::DEFAULT_PLANNING_SCENE_TOPIC) { } void load(const rclcpp::Node::SharedPtr& node) { const std::string ns = "planning_scene_monitor_options"; node->get_parameter_or(ns + ".name", name, std::string("planning_scene_monitor")); node->get_parameter_or(ns + ".robot_description", robot_description, std::string("robot_description")); node->get_parameter_or(ns + ".wait_for_initial_state_timeout", wait_for_initial_state_timeout, 0.0); } std::string name; std::string robot_description; const std::string joint_state_topic; const std::string attached_collision_object_topic; const std::string monitored_planning_scene_topic; const std::string publish_planning_scene_topic; double wait_for_initial_state_timeout; }; /// struct contains the the variables used for loading the planning pipeline struct PlanningPipelineOptions { void load(const rclcpp::Node::SharedPtr& node) { const std::string ns = "planning_pipelines."; node->get_parameter(ns + "pipeline_names", pipeline_names); node->get_parameter(ns + "namespace", parent_namespace); } std::vector<std::string> pipeline_names; std::string parent_namespace; }; /// Parameter container for initializing MoveItCpp struct Options { Options(const rclcpp::Node::SharedPtr& node) { planning_scene_monitor_options.load(node); planning_pipeline_options.load(node); } PlanningSceneMonitorOptions planning_scene_monitor_options; PlanningPipelineOptions planning_pipeline_options; }; /** \brief Constructor */ MoveItCpp(const rclcpp::Node::SharedPtr& node); MoveItCpp(const rclcpp::Node::SharedPtr& node, const Options& options); /** * @brief This class owns unique resources (e.g. action clients, threads) and its not very * meaningful to copy. Pass by references, move it, or simply create multiple instances where * required. */ MoveItCpp(const MoveItCpp&) = delete; MoveItCpp& operator=(const MoveItCpp&) = delete; MoveItCpp(MoveItCpp&& other) = default; MoveItCpp& operator=(MoveItCpp&& other) = default; /** \brief Destructor */ ~MoveItCpp(); /** \brief Get the RobotModel object. */ moveit::core::RobotModelConstPtr getRobotModel() const; /** \brief Get the ROS node this instance operates on */ const rclcpp::Node::SharedPtr& getNode() const; /** \brief Get the current state queried from the current state monitor \param wait_seconds the time in seconds for the state monitor to wait for a robot state. */ bool getCurrentState(moveit::core::RobotStatePtr& current_state, double wait_seconds); /** \brief Get the current state queried from the current state monitor \param wait_seconds the time in seconds for the state monitor to wait for a robot state. */ moveit::core::RobotStatePtr getCurrentState(double wait_seconds = 0.0); /** \brief Get all loaded planning pipeline instances mapped to their reference names */ const std::unordered_map<std::string, planning_pipeline::PlanningPipelinePtr>& getPlanningPipelines() const; /** \brief Get the stored instance of the planning scene monitor */ planning_scene_monitor::PlanningSceneMonitorConstPtr getPlanningSceneMonitor() const; planning_scene_monitor::PlanningSceneMonitorPtr getPlanningSceneMonitorNonConst(); std::shared_ptr<const tf2_ros::Buffer> getTFBuffer() const; std::shared_ptr<tf2_ros::Buffer> getTFBuffer(); /** \brief Get the stored instance of the trajectory execution manager */ trajectory_execution_manager::TrajectoryExecutionManagerConstPtr getTrajectoryExecutionManager() const; trajectory_execution_manager::TrajectoryExecutionManagerPtr getTrajectoryExecutionManagerNonConst(); /** \brief Execute a trajectory on the planning group specified by the robot's trajectory using the trajectory * execution manager. * \param [in] robot_trajectory Contains trajectory info as well as metadata such as a RobotModel. * \param [in] controllers An optional list of ros2_controllers to execute with. If none, MoveIt will attempt to find * a controller. The exact behavior of finding a controller depends on which MoveItControllerManager plugin is active. * \return moveit_controller_manager::ExecutionStatus::SUCCEEDED if successful */ [[deprecated("MoveItCpp::execute() no longer requires a blocking parameter")]] moveit_controller_manager::ExecutionStatus execute(const robot_trajectory::RobotTrajectoryPtr& robot_trajectory, bool blocking, const std::vector<std::string>& controllers = std::vector<std::string>()); moveit_controller_manager::ExecutionStatus execute(const robot_trajectory::RobotTrajectoryPtr& robot_trajectory, const std::vector<std::string>& controllers = std::vector<std::string>()); /** \brief Utility to terminate the given planning pipeline */ bool terminatePlanningPipeline(const std::string& pipeline_name); private: // Core properties and instances rclcpp::Node::SharedPtr node_; planning_scene_monitor::PlanningSceneMonitorPtr planning_scene_monitor_; // Planning std::unordered_map<std::string, planning_pipeline::PlanningPipelinePtr> planning_pipelines_; std::unordered_map<std::string, std::set<std::string>> groups_algorithms_map_; // Execution trajectory_execution_manager::TrajectoryExecutionManagerPtr trajectory_execution_manager_; rclcpp::Logger logger_; /** \brief Initialize and setup the planning scene monitor */ bool loadPlanningSceneMonitor(const PlanningSceneMonitorOptions& options); /** \brief Initialize and setup the planning pipelines */ bool loadPlanningPipelines(const PlanningPipelineOptions& options); }; } // namespace moveit_cpp
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【解决】NullReferenceException: Object reference not set to an instance of an object
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游戏引擎：Unity 版本：2019.4.6f1 【2017版本以上均可】 编译平台：Visual Studio 2019 问题描述   [报错]NullReferenceException: Object reference not set to an instance of an object XXX   [中译]空引用异常：对象引用未设置为对象的实例XXXX 解决方案   检查脚本逻辑问题，常见如 GetComponent<>()，FindObjectsOfType()等方法，来给声明的
【c#】Object reference not set to an instance of an object.
大白菜啊
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错误原因： 你调用的对象是空的。 比如，User对象是string类型，而你进行了Length属性操作。 而假如string没有传过去，接收到的是null没有length这个属性，就会返回错误。 if(input.User.Length>0){ ... } 正确写法，先判断。其它类型的数据也要有相关判断。 if(input.User!=null && input.User.Length>0){ ... } ...
[Bug]Object reference not set to an instance of an object.
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引言 今天在客户这儿，由一个问题导致，需求的变化，不得不修改代码，在记录日志中出现该问题。 原因 通过id查找相关信息，没有判断是否为null，集合是否有数据。 Object reference not set to an instance of an object. 翻译：未将对象引用设置到对象的实例。 总结 这个错误在开发中最常见，由于代码不严谨造成，要考虑到为null的情况，不...
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  Server Error in /WebBlog Application. Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please rev
C# Object reference not set to an instance of an object.
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一、问题 　　Object reference not set to an instance of an object. （你调用的对象是空的） 二、解决问题 在使用 c# 的查询时，先筛选后在关联其他表。 在查询时先 pageby 在 orderby 导致。 转载于:https://www.cnblogs.com/gzbit-zxx/p/10870312.html...
【C#】Object reference not set to an instance of an object
大白菜啊
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原因一： 在空对象是使用了某个方法。 str是null，不能使用.Length属性，使用了就报错。 string str=null; Console.WriteLine(str.Length);
错误“Object reference not set to an instance of an object”的解决方法
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