[HTC Sensation] ---Zak---:
Sorry, I do not speak English. This Google translate...

Faced with the same problem and solved it this way:

***

1. Wipe data/factory reset

2. Wipe cache/dalvik

3. Install this ROM

4. Reboot

4.1. Use ROM

5. Reboot to recovery

6. Install this GAPPS

7. Reboot

7.1. Use ROM

8. Reboot to recovery

9. Wipe data/factory reset

10. Reboot

PS:

* cm-12-20150109-UNOFFICIAL-pyramid.zip

* pa_gapps-modular-mini-5.0.1-BETA7-20150111a-signed

Info:

* HTC Sensation XE

* 4ext recovery touch v1.0.0.6 RC3

Logs Installation aborted (you do not have permission to access this page):

pa_gapps_log

# Begin PA GApps Install Log

--------------------------------------------------------------------------------

ROM Android Version | 5.0.2

ROM ID | cm_pyramid-userdebug 5.0.2 LRX22G e85c1352b8 test-keys

ROM Version | 12-20150109-UNOFFICIAL-pyramid

Device Recovery |

Device Name | pyramid

Device Model | Sensation

Device Type | phone

Device CPU | armeabi-v7a,armeabi

getprop Density |

default.prop Density | 240

build.prop Density | 240

Display Density Used | 240ppi

Xposed Detected | undetermined

Install Type | Dirty[Data NOT Wiped]

Google Calendar Installed№ | false

Google Camera Installed№ | false

Google Keyboard Installed№ | false

FaceUnlock Compatible | true

Google Camera Compatible | true

Current GApps Version | NO GApps Installed

Curent PA GApps Package | NO GApps Installed

Installing GApps Version | 20150111a

Installing GApps Type | mini

Config Type | [Default]

Using gapps-config | Not Used

Remove Stock/AOSP Browser | false[default]

Remove Stock/AOSP Email | false[default]

Remove Stock/AOSP Gallery | false[default]

Remove Stock/AOSP Launcher | false[default]

Remove Stock/AOSP MMS App | false[default]

Remove Stock/AOSP Pico TTS | false[default]

Installing Play Services | 6.5.99 (1642632-434)

Total System Size (KB) | 806284

Used System Space (KB) | 543132

Current Free Space (KB) | 263152

Post Install Free Space (KB) | 4520 << See Calculations Below

--------------------------------------------------------------------------------

№ Previously installed with PA GApps

# End PA GApps Install Log

WARNING: Google Calendar has/will not be installed as requested. Google Calendar

can only be installed during a Clean Install or as an update to an existing

GApps Installation.

# Begin GApps Size Calculations

--------------------------------------------------

TYPE | DESCRIPTION | SIZE | TOTAL

| Current Free Space | 263152 | 263152

Remove | Existing GApps | + 0 | 263152

Remove | Obsolete Files | + 712 | 263864

Remove | exchangestock | + 5116 | 268980

Install | CoreІ | - 24844 | 244136

Install | GMSCoreІ | - 31060 | 213076

Install | calsyncі | - 1232 | 211844

Install | exchangegoogleі | - 1204 | 210640

Install | faceunlockі | - 13200 | 197440

Install | gmailі | - 10988 | 186452

Install | googlenowі | - 15300 | 171152

Install | googleplusі | - 30516 | 140636

Install | googlettsі | - 15020 | 125616

Install | hangoutsі | - 19128 | 106488

Install | mapsі | - 14548 | 91940

Install | searchі | - 43128 | 48812

Install | speechі | - 22480 | 26332

Install | streetі | - 260 | 26072

Install | youtubeі | - 12336 | 13736

| Buffer SpaceІ | - 9216 | 4520

--------------------------------------------------

Post Install Free Space | 4520

--------------------------------------------------

І Required (ALWAYS Installed)

і Optional (may be removed)

# End GApps Size Calculations

# Begin User's gapps-config

*** NOT USED ***

# End User's gapps-config