CL.exe 與不允許類型名稱

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**I'm submitting a ...** (check one with "x")

```
[ ] bug report
[ 1] help wanted
[ ] feature request
```

**Current behavior**
我已經將大部分的設定做完，並且也把config.h裡面的定義改過
但還是出現了幾個問題大致上分兩個
第一個是:
嚴重性 程式碼 說明 專案 檔案 行 隱藏項目狀態
錯誤 (作用中) E0254 不允許類型名稱
libeasypr E:\opencv\EasyPR-master\src\core\chars_identify.cpp

第二個是
嚴重性 程式碼 說明 專案 檔案 行 隱藏項目狀態
錯誤 TRK0005 找不到: "CL.exe"。系統找不到指定的檔案。
demo E:\opencv\EasyPR-master\vcprojs\TRACKER 1

好像沒看到其他人有這類型的問題
第二個問題上網查了一下似乎是要重新安裝?但是我跑其他的opencv的功能不會出現這項
不知道問題何在，希望大神幫忙解惑

**Expected/desired behavior**

**Reproduction of the problem**

If the current behavior is a bug or you can illustrate your feature request better with an example, please provide the steps to reproduce.

**What is the expected behavior?**

**What is the motivation / use case for changing the behavior?**

**Please tell us about your environment:**

System:** vs2017

* **Compiler version/IDE:** gcc4.8

* **CMake version:** 3.5.1

* **OpenCV version:** [2.4.9 | 2.4.10 | 2.4.11 | 2.4.12 | 2.4.13 | 3.0 ALPHA | 3.0 BETA | 3.0 RC1 | 3.0 | 3.1 ]

The report names src/core/chars_identify.cpp, config.h, and vcprojs/TRACKER, and reports E0254 plus missing CL.exe under VS2017, GCC 4.8, CMake 3.5.1, and OpenCV. First reproduce the build with the stated environment; done should mean the reported targets build without those diagnostics. The issue lacks complete reproduction steps and expected behavior, so the failing configuration must be clarified first.

Written by the indexing model from the issue text.