ERROR 4: Unable to open EPSG support file with gdal warp?

Question

I'm trying to clip a raster with a polygon layer containing multiple features. To achieve my goal I'm trying to execute those commands lines on a batch file :

C:
cd C:\Program Files\QGIS 2.18\bin
gdalwarp   -cutline C:\poly1.shp -crop_to_cutline -of GTiff -cwhere "'id' = 
'1'"   -r bilinear    C:\western_1.tif  C:\1_dma_western.tif
gdalwarp   -cutline C:\poly1.shp -crop_to_cutline -of GTiff -cwhere "'id' = 
'2'"    -r bilinear   C:\western_1.tif  C:\2_dma_western.tif
gdalwarp   -cutline C:\poly1.shp -crop_to_cutline -of GTiff -cwhere "'id' = 
'3'"   -r bilinear    C:\western_1.tif  C:\3_dma_western.tif
pause

unfortunately I get this Error :

ERROR 4: Unable to open EPSG support file gcs.csv.  Try setting the 
GDAL_DATA environment variable to point to the directory containing EPSG csv 
files.
ERROR 1: Did not get any cutline features.

Both, raster and polygon layer are using the same EPSG. I'm working with gdal which is installed with qgis.

Answer 1

> Error 4 :

fixed it by

• adding my missing variable (PGDATA),
• updating the value of the variable GDAL_DATA, I found it using PostgreSQL 9.5 instead of 9.6.
• Adding the path to the bin folder of PostgreSQL 9.6 in the Path variable.

> Error 1 :

I had to remove the quotes around the id and it's value

C:
cd C:\Program Files\QGIS 2.18\bin
gdalwarp -cutline C:\poly1.shp -of GTiff -cwhere "id = 1" -r bilinear -
crop_to_cutline -overwrite C:\western_1.tif 
C:\Users\Mouqsit\Desktop\dma_1_western.tif
gdalwarp -cutline C:\poly1.shp -of GTiff -cwhere "id = 2" -r bilinear -
crop_to_cutline -overwrite C:\western_1.tif 
C:\Users\Mouqsit\Desktop\dma_2_western.tif
gdalwarp -cutline C:\poly1.shp -of GTiff -cwhere "id = 3" -r bilinear -
crop_to_cutline -overwrite C:\western_1.tif 
C:\Users\Mouqsit\Desktop\dma_3_western.tif
pause