标签:es2017 技术分享 cos alt ace sch ack app ble
CGContextDrawPath: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
关于如何set环境变量:
Product -> Scheme -> Edit Scheme -> Run -> Arguments
在环境变量处添加CG_CONTEXT_SHOW_BACKTRACE并将值设置为Yes.
标签:es2017 技术分享 cos alt ace sch ack app ble
原文地址:http://www.cnblogs.com/o-din/p/7624785.html