Image 006 1 - Solved: VS2017 Running Debug Selected Tests Does Not Open The Debugger

Solved: VS2017 Running Debug Selected Tests Does Not Open The Debugger

I had an issue that VS2017 Running Debug Selected Tests Does Not Open The Debugger.

Last night, I was working on a project. I finished the some tasks, the some tests and I pushed to GitLab all of the projects, using GIT.

Today, I went to office. I pulled all of the projects from source control to my computer. I clicked Restored NuGet Packages on VS Solution Explorer, But I didn’t run all of the tests. I didn’t get neither green check or red error, and It seems like unselected. I tried to debug but It didn’t work! I was getting the following errors:

Image 005 1024x785 - Solved: VS2017 Running Debug Selected Tests Does Not Open The Debugger
VS2017 running debug selected tests does not open the debugger
'testhost.x86.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\testhost.x86.exe'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Microsoft.TestPlatform.CoreUtilities.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Microsoft.TestPlatform.PlatformAbstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Microsoft.TestPlatform.CrossPlatEngine.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Microsoft.TestPlatform.CommunicationUtilities.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Microsoft.VisualStudio.TestPlatform.Common.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Newtonsoft.Json.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Extensions\Microsoft.VisualStudio.TestTools.CppUnitTestFramework.CppUnitTestExtension.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\Extensions\Microsoft.VisualStudio.TestTools.CppUnitTestFramework.ComInterfaces.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ComponentModel.Composition\v4.0_4.0.0.0__b77a5c561934e089\System.ComponentModel.Composition.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\System.Reflection.Metadata.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.IO\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.IO.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\ENTERPRISE\COMMON7\IDE\EXTENSIONS\TESTPLATFORM\System.Collections.Immutable.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Reflection\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Reflection.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.IO.FileSystem\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.IO.FileSystem.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.IO.MemoryMappedFiles\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.IO.MemoryMappedFiles.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Handles\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.Handles.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Reflection.Extensions\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Reflection.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Threading\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Threading.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Text.Encoding\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Text.Encoding.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'testhost.x86.exe' (CLR v4.0.30319: testhost.x86.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Extensions\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
The thread 0x3ca0 has exited with code 0 (0x0).
The program '[13572] testhost.x86.exe: Program Trace' has exited with code 0 (0x0).
The program '[13572] testhost.x86.exe' has exited with code 0 (0x0).

So, I thought that “Maybe VS 2017 crashed”. I restarted VS 2017, I tried again and failed again.

At least, I decided that “Clean Solution” and It worked!

Image 006 1024x720 - Solved: VS2017 Running Debug Selected Tests Does Not Open The Debugger

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