Removing Cloud From Landsat 7/8 using Google Earth Engine?

Question

I am beginner in GEE and trying to apply cloud mask in my study area. I found one code and trying to apply in my area: link: https://code.earthengine.google.com/31b5b21913eefdc05563dfec72c4ee08 I am trying export image to gdrive. However, I faced following error:" Exported bands must have compatible data types; found inconsistent types: Int16 and Byte" while trying to export image. Kindly check code and fix this error

[![var point = /* color: #98ff00 */ee.Geometry.Point(\[74.146537,36.255872\]);

//load images for composite
var sr14= ee.ImageCollection('LANDSAT/LC08/C01/T1_SR')
.filterBounds(point)
.filterDate('2014-01-01','2014-03-01')
//.select(\['B4','B3','B2'\]); // if you select those bands you loose BQA band

// Temporally composite the images with a maximum value function.
var composite = sr14.max();
Map.setCenter( 74.146537,36.255872);
var vis = {bands:\['B3','B6'\],min:0, max:5000}

Map.addLayer(composite, vis, 'max value composite');

var mask = require('users/fitoprincipe/geetools:cloud_masks')

print(mask.help\['landsatSR'\])

var mask_function = mask.landsatSR() // mask function

var col_free = sr14.map(mask_function) // apply function to collection
var composite_free = col_free.max() // create composite using max

Map.addLayer(composite_free, vis, 'composite collection without clouds');
// Export a cloud-optimized GeoTIFF.
Export.image.toDrive({
  image: composite_free,
  description: 'imageToCOGeoTiffExample',
  scale: 30,
  region: point,
  fileFormat: 'GeoTIFF',
  folder : 'My Drive/Landsat',
  maxPixels: 1e13
});][1]][1]

Answer 1

// Print out the image
 // The composite has 11 bands, first 9 bands (B1-B9) has datatype of signed int16. 
 // However, rest of the bands have different data types (unsigned int8; unsigned int18)
 print("Check first image:",composite_free);

 // Solution 
 // If you only want first nine bands, then just select these bands (which means exclude others)
 // you can do this using select() function
 // composite_free.select(['B1','B2','B3','B4','B5','B6','B7','B8','B9'])

 var selectedBandsComp = composite_free.select(['B1','B2','B3','B4','B5','B6','B7','B8','B9'])

 // Now use selectedBandsComp to export
 // Export a cloud-optimized GeoTIFF.
 Export.image.toDrive({ image: selectedBandsComp,
 description: 'imageToCOGeoTiffExample',
 scale: 30,
  region: point,
  fileFormat: 'GeoTIFF',
  folder : 'My Drive/Landsat',
  maxPixels: 1e13
 });

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