# Help! powervr sdk 3.5 es 3.0 examples run failed but es 2.0 examples works well

**URL:** <https://forums.imgtec.com/t/help-powervr-sdk-3-5-es-3-0-examples-run-failed-but-es-2-0-examples-works-well/2309>\
**Category:** PowerVR Insider\
**Tags:** pvrvframe\
**Created:** [June 16, 2015, 11:10am UTC](https://forums.imgtec.com/t/help-powervr-sdk-3-5-es-3-0-examples-run-failed-but-es-2-0-examples-works-well/2309 "2015-06-16T11:10:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jiexu](https://avatars.discourse-cdn.com/v4/letter/j/a8b319/32.png) [@jiexu](https://forums.imgtec.com/u/jiexu)\
**Post date:** [June 16, 2015, 11:10am UTC](https://forums.imgtec.com/t/help-powervr-sdk-3-5-es-3-0-examples-run-failed-but-es-2-0-examples-works-well/2309/1 "2015-06-16T11:10:26Z")

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I build powervr sdk 3.5 examples with VS 2010 on windows 7 64 bit. When i build examples in es 2.0 folder, it says “libEGL.dll is missing”, so i copy the dll from SDK\_3.5\Builds\Windows\x86\_32\Lib to project debug folder, then it works well. But when i build examples in es 3.0 folder and have copy the dll, it give an error message “PVRShell: Unable to create a context”. The error is in PVRShellInit::ApiInitAPI[] after eglCreateContext[] return EGL\_NO\_CONTEXT. I don’t know why this happened? Does anyone has the same problem?

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**Author:** ![PaulLy](https://avatars.discourse-cdn.com/v4/letter/p/958977/32.png) [@PaulLy](https://forums.imgtec.com/u/PaulLy)\
**Post date:** [June 16, 2015, 12:32pm UTC](https://forums.imgtec.com/t/help-powervr-sdk-3-5-es-3-0-examples-run-failed-but-es-2-0-examples-works-well/2309/2 "2015-06-16T12:32:14Z")

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What GPU do you have on your system? It may be that it doesn’t support all the ES3.0 features.

You can also try running the PVRVFrameGUI, and selecting Edit -\> Preferences -\> Context creation mode = Loose

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**Author:** ![jiexu](https://avatars.discourse-cdn.com/v4/letter/j/a8b319/32.png) [@jiexu](https://forums.imgtec.com/u/jiexu)\
**Post date:** [June 17, 2015, 4:07am UTC](https://forums.imgtec.com/t/help-powervr-sdk-3-5-es-3-0-examples-run-failed-but-es-2-0-examples-works-well/2309/3 "2015-06-17T04:07:28Z")

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The GPU in my system is HD Graphics 2500, i have updated the driver to the latest version.  
The es 3.0 samples work well after i selected Context creation mode = Loose in PVRVFrameGUI. Thank you very much!!!