Compile Error Visual Studio 2019

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Introduction

CycloneDDS is a popular open-source implementation of the Data Distribution Service (DDS) standard, widely used in various industries for real-time data communication. However, users of Microsoft Visual Studio 2019 have reported issues with compiling the CycloneDDS master branch, specifically with version 16.4.2 (MSVC 19.24.28314.0). In this article, we will delve into the problem, explore the possible causes, and provide a solution to resolve the compile error.

The Problem

The compile error occurs when trying to build the CycloneDDS master branch using Microsoft Visual Studio 2019 version 16.4.2 (MSVC 19.24.28314.0). The error message is as follows:

C:.conan\610e69\1\include\ddscxx\org\eclipse\cyclonedds\topic\datatopic.hpp(669,1): error C2989: 'ddsi_serdata': class template has already been declared as a non-class template
C:.conan\41cdf7\1\include\dds\ddsi\ddsi_serdata.h(402): message : see declaration of 'ddsi_serdata'
C:.conan\610e69\1\include\ddscxx\org\eclipse\cyclonedds\topic\datatopic.hpp(668): error C3857: 'serdata_from_loaned_sample': multiple template parameter lists are not allowed
C:.conan\610e69\1\include\ddscxx\org\eclipse\cyclonedds\topic\datatopic.hpp(711,1): fatal error C1903: unable to recover from previous error(s); stopping compilation

Possible Causes

The error message suggests that there is a conflict between the declaration of the ddsi_serdata class template and its usage in the datatopic.hpp file. This conflict may be caused by a mismatch between the version of the Microsoft Visual Studio compiler and the version of the CycloneDDS codebase.

Solution

Fortunately, the issue can be resolved by updating the Microsoft Visual Studio compiler to a later version. Specifically, version 16.11 (MSVC 19.29.30138.0) has been reported to work correctly with the CycloneDDS master branch.

To update the Microsoft Visual Studio compiler, follow these steps:

  1. Open Visual Studio 2019: Launch the Visual Studio 2019 application.
  2. Go to Tools: Click on the "Tools" menu in the top navigation bar.
  3. Select "Get Tools and Features": From the drop-down menu, select "Get Tools and Features".
  4. Update the compiler: In the "Visual Studio Installer" window, click on the "Modify" button next to "Visual Studio 2019".
  5. Select the latest compiler version: In the "Workloads" tab, select the "Desktop development with C++" workload and ensure that the "MSVC 2019 v16.11" compiler is selected.
  6. Install the update: Click on the "Modify" button to install the update.

Verifying the Solution

After updating the Microsoft Visual Studio compiler, verify that the CycloneDDS master branch compiles correctly. To do this:

  1. Open the CycloneDDS solution: Launch the CycloneDDS solution file in Visual Studio 2019.
  2. Build the solution: Click on the "Build" menu and select "Build Solution".
  3. Verify the compilation: Check that the compilation is successful and that there are no errors.

Conclusion

In this article, we have explored the compile error in Visual Studio 2019 when building the CycloneDDS master branch. We have identified the possible causes of the error and provided a solution to resolve the issue by updating the Microsoft Visual Studio compiler to a later version. By following the steps outlined in this article, users of Microsoft Visual Studio 2019 should be able to successfully compile the CycloneDDS master branch.

Additional Resources

Introduction

In our previous article, we explored the compile error in Visual Studio 2019 when building the CycloneDDS master branch. We identified the possible causes of the error and provided a solution to resolve the issue by updating the Microsoft Visual Studio compiler to a later version. In this article, we will answer some frequently asked questions (FAQs) related to the CycloneDDS compile error in Visual Studio 2019.

Q: What is the CycloneDDS compile error in Visual Studio 2019?

A: The CycloneDDS compile error in Visual Studio 2019 is a known issue that occurs when trying to build the CycloneDDS master branch using Microsoft Visual Studio 2019 version 16.4.2 (MSVC 19.24.28314.0). The error message is as follows:

C:.conan\610e69\1\include\ddscxx\org\eclipse\cyclonedds\topic\datatopic.hpp(669,1): error C2989: 'ddsi_serdata': class template has already been declared as a non-class template
C:.conan\41cdf7\1\include\dds\ddsi\ddsi_serdata.h(402): message : see declaration of 'ddsi_serdata'
C:.conan\610e69\1\include\ddscxx\org\eclipse\cyclonedds\topic\datatopic.hpp(668): error C3857: 'serdata_from_loaned_sample': multiple template parameter lists are not allowed
C:.conan\610e69\1\include\ddscxx\org\eclipse\cyclonedds\topic\datatopic.hpp(711,1): fatal error C1903: unable to recover from previous error(s); stopping compilation

Q: What are the possible causes of the CycloneDDS compile error in Visual Studio 2019?

A: The possible causes of the CycloneDDS compile error in Visual Studio 2019 are:

  • Mismatch between the version of the Microsoft Visual Studio compiler and the version of the CycloneDDS codebase.
  • Conflict between the declaration of the ddsi_serdata class template and its usage in the datatopic.hpp file.

Q: How can I resolve the CycloneDDS compile error in Visual Studio 2019?

A: To resolve the CycloneDDS compile error in Visual Studio 2019, you can update the Microsoft Visual Studio compiler to a later version. Specifically, version 16.11 (MSVC 19.29.30138.0) has been reported to work correctly with the CycloneDDS master branch.

Q: How do I update the Microsoft Visual Studio compiler?

A: To update the Microsoft Visual Studio compiler, follow these steps:

  1. Open Visual Studio 2019: Launch the Visual Studio 2019 application.
  2. Go to Tools: Click on the "Tools" menu in the top navigation bar.
  3. Select "Get Tools and Features": From the drop-down menu, select "Get Tools and Features".
  4. Update the compiler: In the "Visual Studio Installer" window, click on the "Modify" button next to "Visual Studio 2019".
  5. Select the latest compiler version: In the "Workloads" tab, select the "Desktop development with C++" workload and ensure that the "MSVC 2019 v16.11" compiler is selected.
  6. Install the update: Click on the "Modify" button to install the update.

Q: How do I verify that the CycloneDDS compile error in Visual Studio 2019 has been resolved?

A: To verify that the CycloneDDS compile error in Visual Studio 2019 has been resolved, follow these steps:

  1. Open the CycloneDDS solution: Launch the CycloneDDS solution file in Visual Studio 2019.
  2. Build the solution: Click on the "Build" menu and select "Build Solution".
  3. Verify the compilation: Check that the compilation is successful and that there are no errors.

Q: Where can I find additional resources for the CycloneDDS project?

A: For further information on the CycloneDDS project, please visit the official CycloneDDS website at https://cyclonedds.org/. Additionally, the CycloneDDS community forum can be found at https://cyclonedds.org/community/forum/.