Not surprising, since no open source framework solves all of these problems.

不要惊讶，因为没有一个开源框架能够解决所有这些问题。

youdao

No open source [project] had tested the ability to be granted the TCK at that time.

那个时候，还没有哪个开放源码 [项目] 测试了通过 TCK 认证的能力。

youdao

In fact, software such as QQ chat a lot, but basically there is no open source, but only the client software, some software like ICQ, although the service side but not open source.

其实像QQ聊天这样的软件有很多，但基本上都没有公开源代码，而且也只是提供软件客户端，有一些像ICQ的软件虽提供服务端但却不公开源代码。

youdao

There are many talented developers, for example, who are happy to invest countless hours with no cash compensation to develop open source software such as the Firefox browser or the Linux operating system because it gives them satisfaction and a chance to show off their coding chops to the broader community of developers.

FORBES: uTest's 60,000 Testers Debug Your Software

She built FastPDF with open source software, so no licensing of maintenance fees, and hosted the service with an outside firm.

FORBES: Extreme Outsourcing

Sanchez said that not only is the license unclear, but corners of the open source community have little or no interest in working with commercial entities to integrate proprietary and free software.

CNN: Apple warms up to open source community