MAC OS X 10.9.3 - Error during stitching

Hi guys,

I don't know why Hugin can't stitch a panorama :(
This is the complete log file:

===========================================================================
*************** Panorama makefile generated by Hugin ***************
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System information
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Software:

    System Software Overview:

      System Version: OS X 10.9.3 (13D65)
      Kernel Version: Darwin 13.2.0
      Boot Volume: Macintosh HD
      Boot Mode: Normal
      Computer Name: MacBook Pro di Alessandro
      User Name: Alessandro (Alessandro)
      Secure Virtual Memory: Enabled
      Time since boot: 1 day3:01

Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro6,1
      Processor Name: Intel Core i5
      Processor Speed: 2,53 GHz
      Number of Processors: 1
      Total Number of Cores: 2
      L2 Cache (per Core): 256 KB
      L3 Cache: 3 MB
      Memory: 8 GB
      Processor Interconnect Speed: 4.8 GT/s
      Boot ROM Version: MBP61.0057.B0F
      SMC Version (system): 1.57f18
      Serial Number (system): C02CH5NHDC79
      Hardware UUID: 00206A46-0AE2-5A71-A14F-940BC5AD0FFD
      Sudden Motion Sensor:
          State: Enabled

Disc usage
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk0s2 465Gi 318Gi 146Gi 69% 83501325 38385417 69% /
devfs 181Ki 181Ki 0Bi 100% 626 0 100% /dev
map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net
map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home
===========================================================================
Output options
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Hugin Version: 2010.4.0 built by Harry van der Wolf
Project file: /var/folders/8s/myg732wd3g3gk3nkzpblsh6m0000gn/T/huginpto_h835kf
Output prefix: _MG_6581-HDR(3)-_MG_6590-HDR(3)
Projection: Equirectangular (2)
Field of view: 124 x 104
Canvas dimensions: 5000 x 4193
Crop area: (473,1949) - (4489,3930)
Output exposure value: 12.64
Selected outputs
Normal panorama
* Blended panorama
===========================================================================
Input images
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Number of images in project file: 4
Number of active images: 4
Image 0: /Users/Alessandro/Desktop/Danxia TIFF/Panorama/pano 2 - meglio del 3 - 13/_MG_6581-HDR(3).tif
Image 0: Size 3454x5182, Exposure: 12.64
Image 1: /Users/Alessandro/Desktop/Danxia TIFF/Panorama/pano 2 - meglio del 3 - 13/_MG_6584-HDR(3).tif
Image 1: Size 3453x5181, Exposure: 12.64
Image 2: /Users/Alessandro/Desktop/Danxia TIFF/Panorama/pano 2 - meglio del 3 - 13/_MG_6587-HDR(3).tif
Image 2: Size 3453x5181, Exposure: 12.64
Image 3: /Users/Alessandro/Desktop/Danxia TIFF/Panorama/pano 2 - meglio del 3 - 13/_MG_6590-HDR(3).tif
Image 3: Size 3454x5182, Exposure: 12.64
===========================================================================
Testing programs
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Checking nona...[OK]
Checking enblend...[OK]
Checking enfuse...[OK]
Checking hugin_hdrmerge...[OK]
Checking exiftool...[OK]
===========================================================================
Stitching panorama
===========================================================================
/Applications/Hugin.app/Contents/Resources/HuginStitchProject.app/Contents/MacOS/nona -z LZW -r ldr -m TIFF_m -o _MG_6581-HDR\(3\)-_MG_6590-HDR\(3\) -i 0 /var/folders/8s/myg732wd3g3gk3nkzpblsh6m0000gn/T/huginpto_h835kf
/Applications/Hugin.app/Contents/Resources/HuginStitchProject.app/Contents/MacOS/nona -z LZW -r ldr -m TIFF_m -o _MG_6581-HDR\(3\)-_MG_6590-HDR\(3\) -i 1 /var/folders/8s/myg732wd3g3gk3nkzpblsh6m0000gn/T/huginpto_h835kf
gnumake: *** No rule to make target `3).tif)', needed by `_MG_6581-HDR(3)-_MG_6590-HDR(3)0002.tif'. Stop.

Do you have any idea?
Thanks a lot!
Ale