# Merging 3 projects fail, output coordinate system not same **URL:** \ **Category:** PIX4Dmapper Questions/Troubleshooting\ **Created:** [April 29, 2022, 7:31pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427 "2022-04-29T19:31:22Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [April 29, 2022, 7:31pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/1 "2022-04-29T19:31:22Z")
Hello, I am having trouble with merging 3 large projects, but it is failing due to the output coordinate system not matching. I will attach the quality control reports once I post this topic. Some info: All three projects taken with DJI P4 RTK No GCP, only MTP All three processed with same output coordinate system [NAD\_1983\_StatePlane\_Texas\_South\_Central\_FIPS\_4204\_Feet (deprecated)] All three seem to have the same geoid height above ellipsoid: 0.00 All three projects have Step 1 complete, MTP’s created with same names, and reoptimized. Any suggestions? ---
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [April 29, 2022, 7:33pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/2 "2022-04-29T19:33:50Z")
Okay, so quality reports have not been generated. I will generate and post when I get them. ---
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [April 29, 2022, 7:38pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/3 "2022-04-29T19:38:11Z")
![Olivares Output Coordinate System](https://global.discourse-cdn.com/pix4d/original/2X/0/0c43470a6ff70b487aedc3e099f9ce82e9804837.jpeg) Here is a screenshot of the output coordinate system, as far as I can tell it is the same for all 3 projects. ---
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [April 29, 2022, 7:40pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/4 "2022-04-29T19:40:15Z")
[Olivares 70L.zip](https://community.pix4d.com/uploads/short-url/8udvI1RNIYaawiT1sjkjUcYZwp0.zip) (876.3 KB) [Olivares 70S.zip](https://community.pix4d.com/uploads/short-url/ldPKWxTjMjpnGDDnpzzhk2Zj3lE.zip) (1.1 MB) [Olivares 90.zip](https://community.pix4d.com/uploads/short-url/lm7CQuHD30fCD0vISIXpie80d0s.zip) (851.1 KB) Here are the log files if that helps. ---
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [May 2, 2022, 11:01am UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/5 "2022-05-02T11:01:45Z")
[Olivares MergedB.log](https://community.pix4d.com/uploads/short-url/tpys9HLnO1oIUyTre6IZHiPWf6W.log) (14.6 KB) Forgot to upload the log file on the attempted merge ---
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [May 2, 2022, 11:49am UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/6 "2022-05-02T11:49:06Z")
Quality Reports [Olivares 70L\_report.pdf](https://community.pix4d.com/uploads/short-url/dNqkDU89m4dy9y78HzaARFRLOR2.pdf) (111.4 KB) [Olivares 70S\_report.pdf](https://community.pix4d.com/uploads/short-url/8f76qLM8gQ9NxUCcGNIpIbIYRXa.pdf) (116.4 KB) [Olivares 90\_report.pdf](https://community.pix4d.com/uploads/short-url/3Z1OCKuGHSmSpIIAN7mkJ5BdzYu.pdf) (787.9 KB) ---
**Author:** ![leonard](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/leonard/32/3113_2.png) [@leonard](https://community.pix4d.com/u/leonard)\ **Post date:** [May 4, 2022, 1:02pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/7 "2022-05-04T13:02:17Z")
Does anyone have a suggestion for this? @Kapil_Khanal @Daniele_Lecci ---
**Author:** ![Daniele\_Lecci](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/daniele_lecci/32/9493_2.png) [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)\ **Post date:** [May 4, 2022, 1:19pm UTC](https://community.pix4d.com/t/merging-3-projects-fail-output-coordinate-system-not-same/22427/8 "2022-05-04T13:19:53Z")
Hi @leonard Thank you for all the information. It seems that the Olivares 70L project is in another coordinate system: ![image](https://global.discourse-cdn.com/pix4d/original/2X/1/1bc06675b51c9632fbbc6fd4321fe7daf4f99d10.png) Please change the coordinate system and try again.