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Usually the 'permission denied' is because an instance of your program is still running. You can use Task Manager to kill it. Ctrl+Shift+Esc to run Task Manager, go to. Jun 02, 2014 yeah that's one of the reasons, you may create a new project, copy-paste the code into new project and build it. If all goes OK then cool you're good to go if not come here again!
You can generate code metrics data in three ways:
By installing FxCop analyzers and enabling the four code metrics (maintainability) rules it contains.
By choosing the Analyze > Calculate Code Metrics menu command within Visual Studio.
From the command line for C# and Visual Basic projects.
FxCop analyzers code metrics rules
The FxCopAnalyzers NuGet package includes several code metrics analyzer rules:
These rules are disabled by default but you can enable them from Solution Explorer or in a rule set file. For example, to enable rule CA1502 as a warning, your .ruleset file would contain the following entry:
Configuration
You can configure the thresholds at which the code metrics rules in the FxCop analyzers package fire.
Create a text file. As an example, you can name it CodeMetricsConfig.txt.
Add the desired thresholds to the text file in the following format:
In this example, rule CA1502 is configured to fire when a method's cyclomatic complexity is greater than 10.
In the Properties window of Visual Studio, or in the project file, mark the build action of the configuration file as AdditionalFiles. For example:
Calculate Code Metrics menu command
Generate code metrics for one or all of your open projects in the IDE by using the Analyze > Calculate Code Metrics menu.
Generate code metrics results for an entire solution
You can generate code metrics results for an entire solution in any of the following ways:
From the menu bar, choose Analyze > Calculate Code Metrics > For Solution.
In Solution Explorer, right-click the solution and then choose Calculate Code Metrics.
In the Code Metrics Results window, choose the Calculate Code Metrics for Solution button.
Open Exe Dev File
The results are generated and the Code Metrics Results window is displayed. To view the results details, expand the tree in the Hierarchy column.
Generate code metrics results for one or more projects
In Solution Explorer, select one or more projects.
From the menu bar, choose Analyze > Calculate Code Metrics > For Selected Project(s).
The results are generated and the Code Metrics Results window is displayed. To view the results details, expand the tree in the Hierarchy.
Note
The Calculate Code Metrics command does not work for .NET Core and .NET Standard projects. To calculate code metrics for a .NET Core or .NET Standard project, you can:
Calculate code metrics from the command line instead
Upgrade to Visual Studio 2019
Command-line code metrics
You can generate code metrics data from the command line for C# and Visual Basic projects for .NET Framework, .NET Core, and .NET Standard apps. To run code metrics from the command line, install the Microsoft.CodeAnalysis.Metrics NuGet package or build the Metrics.exe executable yourself.
Microsoft.CodeAnalysis.Metrics NuGet package
The easiest way to generate code metrics data from the command line is by installing the Microsoft.CodeAnalysis.Metrics NuGet package. After you've installed the package, run msbuild /t:Metrics from the directory that contains your project file. For example:
You can override the output file name by specifying /p:MetricsOutputFile=<filename>. You can also get legacy-style code metrics data by specifying /p:LEGACY_CODE_METRICS_MODE=true. For example:
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Code metrics output
The generated XML output takes the following format:
Metrics.exe
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If you don't want to install the NuGet package, you can generate and use the Metrics.exe executable directly. To generate the Metrics.exe executable:
Clone the dotnet/roslyn-analyzers repo.
Open Developer Command Prompt for Visual Studio as an administrator.
From the root of the roslyn-analyzers repo, execute the following command:
Restore.cmdChange directory to srcTools.
Execute the following command to build the Metrics.csproj project:
An executable named Metrics.exe is generated in the artifactsbin directory under the repo root.
Metrics.exe usage
To run Metrics.exe, supply a project or solution and an output XML file as arguments. For example:
Legacy mode
You can choose to build Metrics.exe in legacy mode. The legacy mode version of the tool generates metric values that are closer to what older versions of the tool generated. Additionally, in legacy mode, Metrics.exe generates code metrics for the same set of method types that previous versions of the tool generated code metrics for. For example, it doesn't generate code metrics data for field and property initializers. Legacy mode is useful for backwards compatibility or if you have code check-in gates based on code metrics numbers. The command to build Metrics.exe in legacy mode is:
For more information, see Enable generating code metrics in legacy mode.
Previous versions
Visual Studio 2015 included a command-line code metrics tool that was also called Metrics.exe. This previous version of the tool did a binary analysis, that is, an assembly-based analysis. The newer version of the Metrics.exe tool analyzes source code instead. Because the newer Metrics.exe tool is source code-based, command-line code metrics results may be different to those generated by the Visual Studio IDE and by previous versions of Metrics.exe. Starting in Visual Studio 2019, the Visual Studio IDE analyzes source code like the command-line tool and the results should be the same.
Visual Studio 2015 included a command-line code metrics tool that was also called Metrics.exe. This previous version of the tool did a binary analysis, that is, an assembly-based analysis. The new Metrics.exe tool analyzes source code instead. Because the new Metrics.exe tool is source code-based, command-line code metrics results are different to those generated by the Visual Studio IDE and by previous versions of Metrics.exe.
The new command-line code metrics tool computes metrics even in the presence of source code errors, as long as the solution and project can be loaded.
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Metric value differences
Starting in Visual Studio 2019 version 16.4 and Microsoft.CodeAnalysis.Metics (2.9.5), SourceLines and ExecutableLines replace the previous LinesOfCode metric. For descriptions of the new metrics, see Code metrics values. The LinesOfCode metric is available in legacy mode.
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The LinesOfCode metric is more accurate and reliable in the new command-line code metrics tool. It's independent of any codegen differences and doesn’t change when the toolset or runtime changes. The new tool counts actual lines of code, including blank lines and comments.
Other metrics such as CyclomaticComplexity and MaintainabilityIndex use the same formulas as previous versions of Metrics.exe, but the new tool counts the number of IOperations (logical source instructions) instead of intermediate language (IL) instructions. The numbers will be slightly different to those generated by the Visual Studio IDE and by previous versions of Metrics.exe.