eclipse the user operation is waiting for building workspace" to complete

"the user operation is waiting for building workspace" to complete"，

解決辦法：

1.選擇菜單欄的“Project”,然后把菜單欄中“Build Automatically”前面的對鈎去掉。

2.當你修改或添加代碼后，選擇菜單欄的“Project”,然后選擇菜單欄中“Build All”就可以再次編譯了。