Word2Vec Sequence contains no matching element about scisharp-stack-examples HOT 4 OPEN

graph\word2vec.meta already exists.
Words count: 3574
Unique words: 27
Vocabulary size: 28
Most common words: UNK 0 0, and 1 440, is 2 220, are 3 220, beautiful 4 220, country 5 220, really 6 165, this 7 110, singapore 8 110, one 9 110
2021-05-04 17:04:46.148202: I tensorflow/core/platform/cpu_feature_guard.cc:142] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  AVX2
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
Step 1, Average Loss= 428.7090
Evaluation...
System.InvalidOperationException: Sequence contains no matching element
   at System.Linq.ThrowHelper.ThrowNoMatchException()
   at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)
   at TensorFlowNET.Examples.Word2Vec.Run() in C:\Users\Adnan Salahuddin\Desktop\TensorFlow\SciSharp-Stack-Examples\src\TensorFlowNET.Examples\TextProcessing\Word2Vec.cs:line 114
   at TensorFlowNET.Examples.Program.RunExamples(String key, IExample[] examples) in C:\Users\Adnan Salahuddin\Desktop\TensorFlow\SciSharp-Stack-Examples\src\TensorFlowNET.Examples\Program.cs:line 89
5/4/2021 12:04:47 PM Completed Word2Vec
Example: Word2Vec is Failed!

graph\word2vec.meta already exists.
Words count: 249891
Unique words: 23642
Vocabulary size: 2005
Most common words: UNK 0 42278,  1 47240, the 2 6279, and 3 5479, to 4 4723, i 5 4403, of 6 3721, my 7 3114, a 8 2975, you 9 2449
2021-05-05 09:58:39.631276: I tensorflow/core/platform/cpu_feature_guard.cc:142] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  AVX2
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
2021-05-05 09:58:39.765438: W tensorflow/core/framework/cpu_allocator_impl.cc:80] Allocation of 37708000 exceeds 10% of free system memory.
2021-05-05 09:58:39.765775: W tensorflow/core/framework/cpu_allocator_impl.cc:80] Allocation of 37708000 exceeds 10% of free system memory.
Step 1, Average Loss= 537.0739
Evaluation...
2021-05-05 09:58:40.375849: W tensorflow/core/framework/cpu_allocator_impl.cc:80] Allocation of 37708000 exceeds 10% of free system memory.
2021-05-05 09:58:40.399673: W tensorflow/core/framework/cpu_allocator_impl.cc:80] Allocation of 37708000 exceeds 10% of free system memory.
System.InvalidOperationException: Sequence contains no matching element
   at System.Linq.ThrowHelper.ThrowNoMatchException()
   at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)
   at TensorFlowNET.Examples.Word2Vec.Run() in C:\Users\Adnan Salahuddin\Desktop\TensorFlow\SciSharp-Stack-Examples\src\TensorFlowNET.Examples\TextProcessing\Word2Vec.cs:line 114
   at TensorFlowNET.Examples.Program.RunExamples(String key, IExample[] examples) in C:\Users\Adnan Salahuddin\Desktop\TensorFlow\SciSharp-Stack-Examples\src\TensorFlowNET.Examples\Program.cs:line 89
5/5/2021 4:58:41 AM Completed Word2Vec
Example: Word2Vec is Failed!