EMS Sensor Output Variable invalid name

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I am trying to model a switchable glazing that is responsive to external environmental changes, specifically to the changes in solar irradiance levels. I am getting this error:

 ** Severe  ** Invalid Output:Variable or Output:Meter Name =SURFACE OUTSIDE FACE INCIDENT SOLAR RADIATION RATE PER A
   **   ~~~   ** Entered in EnergyManagementSystem:Sensor=WIN_2_SOLARIRRAD
   **   ~~~   ** Output:Variable Name not found

My object is as this:

EnergyManagementSystem:Sensor,
    Win_1_SolarIrrad,        !- Name
    Block1:Zone1:Wall_1_Window_1,  !- Output:Variable or Output:Meter Index Key Name
    Surface Outside Face Incident Solar Radiation Rate per Area;  !- Output:Variable or Output:Meter Name

Could you help me sorting the output variable name?