Unable to resolve 'System.Net.Http (>= 4.3.1)'

I got this below error when i run applcation in vs2017

 

Error NU1100 Unable to resolve 'System.Net.Http (>= 4.3.1)' for '.NETFramework,Version=v4.6.1'.

Error NU1100 Unable to resolve 'Microsoft.ApplicationInsights.PerfCounterCollector (>= 2.4.1)' for '.NETFramework,Version=v4.6.1'.

Error NU1100 Unable to resolve 'Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel (>= 2.4.0)' for '.NETFramework,Version=v4.6.1'.

Error NU1100 Unable to resolve 'Microsoft.ApplicationInsights.Agent.Intercept (>= 2.4.0)' for '.NETFramework,Version=v4.6.1'.

Error NU1100 Unable to resolve 'System.Net.Http (>= 4.3.1)' for '.NETFramework,Version=v4.6.1/win7-x86'.

Error NU1100 Unable to resolve 'Microsoft.ApplicationInsights.PerfCounterCollector (>= 2.4.1)' for '.NETFramework,Version=v4.6.1/win7-x86'.

Error NU1100 Unable to resolve 'Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel (>= 2.4.0)' for '.NETFramework,Version=v4.6.1/win7-x86'.

Error NU1100 Unable to resolve 'Microsoft.ApplicationInsights.Agent.Intercept (>= 2.4.0)' for '.NETFramework,Version=v4.6.1/win7-x86'.