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IsolatedEnv and empty SolutionConfigurationPlatforms: "escapedValue" cannot be null

set __vssbe_diag= true to enable diagnostic mode.
Error when loading: 'System.ArgumentNullException: Parameter "escapedValue" cannot be null.
   at Microsoft.Build.Shared.ErrorUtilities.VerifyThrowArgumentNull(Object parameter, String parameterName, String resourceName)
   at Microsoft.Build.Execution.ProjectPropertyInstance.Create(String name, String escapedValue, Boolean mayBeReserved, ElementLocation location, Boolean isImmutable)
   at Microsoft.Build.Evaluation.ProjectCollection.SetGlobalProperty(String name, String value)
   at net.r_eg.vsSBE.IsolatedEnv..ctor(String solutionFile, IDictionary`2 properties)
   at net.r_eg.vsSBE.API.EventLevel.load(String sln, Dictionary`2 properties, ISettings cfg)
   at net.r_eg.vsSBE.Provider.Loader.load(String solutionFile, Dictionary`2 properties, String libPath, Boolean createDomain)
   at net.r_eg.vsSBE.Provider.Loader.load(String solutionFile, Dictionary`2 properties, String libPath)
   at net.r_eg.vsSBE.CI.MSBuild.Initializer.load(InitializerProperties prop)'
MSBUILD : Logger error MSB1029: Fatal error
 Build failed.

Possible when no SolutionConfigurationPlatforms records inside .sln, for example, projects such https://github.com/3F/GetNuTool

set cim=packages\vsSolutionBuildEvent\cim.cmd
call %cim% "gnt.sln" /v:m /m:4

Temp solution

Either define any values for Configuration/Platform when invoking:

call %cim% "gnt.sln" /v:m /m:4 /p:Configuration=Release /p:Platform=x64

Or add SolutionConfigurationPlatforms with default value for .sln

Global
	GlobalSection(SolutionConfigurationPlatforms) = preSolution
		Debug|Any CPU = Debug|Any CPU
	EndGlobalSection

v

call %cim% "gnt.sln" /v:m /m:4 /p:Configuration=Release
:: now platform will be considered as /p:Platform=Any CPU