How to fix "One or more projects in the solution were not loaded correctly. Please see the Output Window for details" warming error when launching SSRS report project in Visual Studio 2015

when i open one of SSRS Reporting Project. I always receive this popup warming message




 the issue is stem from the mess in Global Section in configuration of solution file. we can manually clean up the mess by openning the solution file in Notepad. I had highlight the removal text in Red.



Before:
Global
    GlobalSection(SolutionConfigurationPlatforms) = preSolution
        Debug|Default = Debug|Default
        Debug|Any CPU = Debug|Any CPU
        DebugLocal|Default = DebugLocal|Default
       DebugLocal|Any CPU = DebugLocal|Any CPU
       Release|Default = Release|Default
       Release|Any CPU = Release|Any CPU
    EndGlobalSection
    GlobalSection(ProjectConfigurationPlatforms) = postSolution
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Debug|Default.ActiveCfg = Debug
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Debug|Default.Build.0 = Debug
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Debug|Default.Deploy.0 = Debug
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.DebugLocal|Default.ActiveCfg = DebugLocal
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.DebugLocal|Default.Build.0 = DebugLocal
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.DebugLocal|Default.Deploy.0 = DebugLocal
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Release|Default.ActiveCfg = Release
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Release|Default.Build.0 = Release
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Release|Default.Deploy.0 = Release
    EndGlobalSection
    GlobalSection(SolutionProperties) = preSolution
        HideSolutionNode = FALSE
    EndGlobalSection
       GlobalSection(SolutionConfigurationPlatforms) = preSolution
        Debug|Default = Debug|Default
        DebugLocal|Default = DebugLocal|Default
        Release|Default = Release|Default
    EndGlobalSection
EndGlobal

After:
Global
    GlobalSection(SolutionConfigurationPlatforms) = preSolution
        Debug|Default = Debug|Default
        DebugLocal|Default = DebugLocal|Default
        Release|Default = Release|Default
    EndGlobalSection
    GlobalSection(ProjectConfigurationPlatforms) = postSolution
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Debug|Default.ActiveCfg = Debug
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Debug|Default.Build.0 = Debug
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Debug|Default.Deploy.0 = Debug
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.DebugLocal|Default.ActiveCfg = DebugLocal
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.DebugLocal|Default.Build.0 = DebugLocal
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.DebugLocal|Default.Deploy.0 = DebugLocal
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Release|Default.ActiveCfg = Release
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Release|Default.Build.0 = Release
        {C840CD44-07C2-4B5D-A534-ED06A044DF1E}.Release|Default.Deploy.0 = Release
    EndGlobalSection
    GlobalSection(SolutionProperties) = preSolution
        HideSolutionNode = FALSE
    EndGlobalSection
EndGlobal