<！>启动时出错：使用sqlite3时，无法在OMNET ++项目中加载库 [英] <!> Error during startup: Cannot load library in OMNET++ project while using sqlite3

问题描述

我有一个OMNET ++项目，CSW ，通过 Project-> Properties-> Project 引用引用其他OMNET ++项目。

对项目的引用 CB_CSW_Vehicle 工作正常。我将项目 - >属性 - > OMNET ++ - > Makemake-> Options-> Target 标记为共享库。所以我有一个 libCB_CSW_Vehicle.dll ，它由主程序CSW 使用。运行 CSW 的模拟，使用 CB_CSW_Vehicle 没有问题。

对另一个项目的引用 CB_CSW_Cloud ，不行。我做了相同的步骤：

1. 标记创建共享库在 OMNET ++ - > Makimake-> Options-> Target


2. 在主项目的属性 - >项目引用中检查项目 CB_CSW_Cloud

我可以构建我的主项目CSW 。我也可以构建libCB_CSW_Cloud.dll 。当我从项目 CSW 运行模拟时，我收到一条错误：

 <！>启动时出错：无法加载库../../../CB_CSW_Cloud/src//libCB_CSW_Cloud.dll：操作成功完成。 
  

这两个项目的唯一区别是，CB_CSW_Cloud 使用 sqlite3 库。我将以下步骤添加到项目中：

1. 设置项目 - >属性 - > OMNET ++ - > Makemake->链接 - >其他库链接（-l选项）： sqlite3


2. 设置项目 - >属性 - > C / C ++通用 - >路径和符号 - >库路径： C：/ sqlite

由于我没有收到一些确切信息，为什么没有加载libCB_CSW_Cloud ，我不知道是什么原因造成的。我使用它完全相同的方式，像其他项目 CB_CSW_Vehicle ，这是有效的。这导致我的建议， sqlite3 库导致问题。可能吗？项目CSW 可以引用另一个项目 CB_CSW_Cloud ，它本身使用一个库 sqlite3 ？或者我还要将这个库添加到CSW ？

您可以帮助我运行CSW 项目吗？

更新：我解决了在运行配置中添加sqlite3库并复制CB_CSW_Cloud的源代码的问题>和 CB_CSW_Vehicle 项目投放到CSW 项目。在OMNET ++中很难有很多项目。

解决方案

你必须添加链接到 c c> CSW 项目的运行配置中的sqlite3 库。转到运行 | 运行配置... |主要选项卡| 更多>> 和动态库将路径写入 sqlite3 图书馆。请注意，路径必须是相对于工作目录，而没有 dll 后缀，没有 lib 前缀。
如果$ code> sqlite3 的 dll 文件不包含 lib 前缀，尝试重命名它（例如从 sqlite3.dll 到 libsqlite3.dll ）。 / p>

I have an OMNET++ project, CSW, that references other OMNET++ projects via Project->Properties->Project References.

The reference to the project CB_CSW_Vehicle works fine. I marked for this project Project->Properties->OMNET++->Makemake->Options->Target as shared library. So I have a libCB_CSW_Vehicle.dll, which is used by the main project CSW. Simulations from CSW run, using CB_CSW_Vehicle without problems.

The reference to the other project CB_CSW_Cloud, doesn't work. I made the same steps for it:

1. marked "create shared library" in OMNET++->Makemake->Options->Target
2. checked the project CB_CSW_Cloud in Properties->Project References of the main project

I can build my main project CSW. I can also build libCB_CSW_Cloud.dll. When I run a simulation from project CSW, I receive an error:

<!> Error during startup: Cannot load library '../../../CB_CSW_Cloud/src//libCB_CSW_Cloud.dll': The operation completed successfully.

The only difference between these two projects, is that CB_CSW_Cloud uses sqlite3 library. I added it to the project with following steps:

1. set Project->Properties->OMNET++->Makemake->Options->Link->Additional Libraries to link with (-l option): sqlite3
2. set Project->Properties->C/C++General->Paths And Symbols->Library Paths: C:/sqlite

Since I don't receive some exact information, why libCB_CSW_Cloud was not loaded, I don't know what causes the problem. I use it in exactly the same way, as other project CB_CSW_Vehicle, that works. This leads me to the suggestion, that the sqlite3 library causes the problem. Is it possible? Can a project CSW have a reference to the other project CB_CSW_Cloud, that itself uses a library sqlite3? Or shall I also add this library to CSW?

Can you help me to run the CSW project?

Update: I solved my problem with adding sqlite3 library to the run configuration and copying the source code of the CB_CSW_Cloud and CB_CSW_Vehicle projects to the CSW project. It is really difficult in OMNET++ to have a lot of projects.

解决方案

You have to add link to the sqlite3 library in run configuration of CSW project. Go to Run | Run Configurations... | Main tab | More>> and in Dynamic libraries write path to sqlite3 library. Please note that the path has to be relative to the working directory, and without a dll suffix, without a lib prefix.
If the dll file of sqlite3 doesn't contain lib prefix, try to rename it (for example from sqlite3.dll into libsqlite3.dll).

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